ATTM01M [AME]

Processor Thermal Monitor; 处理器温度监控
ATTM01M
型号: ATTM01M
厂家: ANALOG MICROELECTRONICS    ANALOG MICROELECTRONICS
描述:

Processor Thermal Monitor
处理器温度监控

传感器 换能器 监控
文件: 总18页 (文件大小:144K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
AME, Inc.  
Processor Thermal Monitor  
2. Features  
ATTM01/ATTM02  
1. General Description  
The ATTM01/ATTM02 are precision remote diode tem-  
perature sensors with a 2-wire System Management Bus  
(SMBus) serial interface. TheATTM01/ATTM02 measure:  
(1) Local temperature and (2) the temperature of a remote  
diode based transistor from Computer Processor Unit  
(CPU),Graphic Processor Unit (GPU) or otherASICs.  
l Remote and Local Temperature Sensing.  
l ±1Accuracy.  
l Programmable HIGH/LOWAlarmTemperature  
Thresholds.  
l ALERT# Output Supports SMBus Protocol.  
l OVERT# Output Useful for System Shutdown.  
l SMBus-compatible interface.  
l SMBus timeout support.  
The ATTM01/ATTM02 provide two system alarms:  
ALERT# and OVERT#.  
(1)ALERT# event occurs when any temperature goes  
outside the value that setup by preprogrammed HIGH and  
LOW temperature limit registers.  
l Packages: SOP-8 and MSOP-8  
(2) OVERT# event occurs when any temperature ex-  
ceeds the OVERT# programmed limit.  
ATTM02 has a different SMBus address to theATTM01.  
The SMBus address of theATTM01 is 0x90 andATTM02  
is 0x94.  
3. Pin Configuration/ Top Side Mark  
VDD  
D+  
1
2
3
8
7
6
SMBCLK  
SMBDATA  
ALERT#  
D-  
OVERT#  
4
5
GND  
Figure1. ATTM01/ATTM02 Pin Diagram (Top View)  
Rev. B.01  
1
AME, Inc.  
ATTM01/ATTM02  
Processor Thermal Monitor  
Ordering Information  
Part number  
Package  
SMBus address  
Marking  
TM01  
ATTM01  
SOP-8  
0x90  
0x90  
0x90  
0x90  
0x94  
0x94  
0x94  
0x94  
ATTM01G  
ATTM01M  
ATTM01MG  
ATTM02  
SOP-8, Green  
MSOP-8  
TM01G  
TM01M  
TM01MG  
TM02  
MSOP-8, Green  
SOP-8  
ATTM02G  
ATTM02M  
ATTM02MG  
SOP-8, Green  
MSOP-8  
TM02G  
TM02M  
TM02MG  
MSOP-8, Green  
4. Pin Description  
Pin Type Description  
OD - Open-drain output  
IN - Input pin  
AIN -Analog input.  
I/OD - Bi-directional with open-drain output.  
Pin No.  
Pin Name  
VDD  
I/O Type  
Power  
AIN  
Function  
1
2
3
4
5
6
7
8
3.3V Power Input.  
D+  
Thermal diode anode Input  
D-  
AIN  
Thermal diode cathode Input.  
OVERT#  
GND  
OD  
Power supply shutdown control.  
Ground pin.  
Ground  
OD  
ALERT#  
SMBDATA  
SMBCLK  
SMBus alert (interrupt) Output.  
SMBus bi-directional data line.  
SMBus clock Input.  
I/OD  
IN  
2
Rev. B.01  
AME, Inc.  
Processor Thermal Monitor  
ATTM01/ATTM02  
n Typical Application  
3.3Vsb  
3.3V  
C3  
C2  
C1  
10u  
0.1u  
100p  
VCORE  
R1  
R2  
U2  
4.7k 4.7k  
C6  
2.2n  
BCLK  
SM  
VDD  
1
8
7
6
5
R6  
SCLK  
SDA  
SMBDATA  
ALERT#  
GND  
D+  
D
2
3
4
4.7k  
C5  
47p  
-
C4  
47p  
OVERT#  
R4  
0
ATTM01/ATTM02  
South bridge  
3.3V  
R7  
4.7k  
THERMTRIP#  
Shutdown circuit  
CPU  
Rev. B.01  
3
AME, Inc.  
ATTM01/ATTM02  
Processor Thermal Monitor  
6. Electrical Specifications  
(These specifications apply for VCC = 3.3V and TA = +25oC, unless otherwise noted.) (Note 1)  
Parameter  
Supply Voltage  
Symbol  
Test Conditions  
Min Typ Max Units  
VCC  
3
3.6  
V
0.5  
°C  
Temperature Resolution  
9
Bits  
VCC = 3.3V, TA =+25°C to +100°C,  
-1.0  
-3.0  
-5.0  
-2.0  
-3.0  
+ 1.0 °C  
+ 3.0 °C  
+ 5.0 °C  
TRJ = +60°C to +100°C  
VCC = 3.3V, TA =+25°C to +100°C,  
Remote Temperature Error  
TRJ = 0°C to +100°C  
VCC = 3.3V, TA =+25°C to +100°C,  
TRJ = 0°C to +125°C  
VCC = 3.3V,  
2.0  
3.0  
°C  
°C  
TA = +60°C to +100°C  
VCC = 3.3V,  
Local Temperature Error  
TA = 0°C to +100°C  
Supply Sensitivity of Temperature Error  
UVLO Hysteresis  
±0.2  
120  
2.62  
2.74  
120  
7.8  
°C/V  
mV  
V
UVLO Threshold  
Falling edge  
Rising edge  
Power-On-Reset (POR) Threshold  
Power-On-Reset (POR) Hysteresis  
Standby Supply Current  
Operating Current  
V
mV  
µA  
mA  
ms  
%
SMBus static  
During conversion  
0.53  
Conversion Time  
tCONV From stop bit to conversion completion  
95  
-25  
75  
125 156  
+25  
Conversion Time Error  
High level  
100 140  
Remote-Diode Source Current  
ALERT, OVERT  
IRJ  
µA  
Low level  
7.5  
10  
14  
ISINK = 1mA  
ISINK = 4mA  
VOH = 5.5V  
0.4  
0.6  
1
V
V
Output Low Voltage  
Output High Leakage Current  
µA  
SMBus-COMPATIBLE INTERFACE (SMBCLK AND SMBDATA)  
Logic Input Low Voltage  
VIL  
0.8  
1
V
V
VCC = 3.0V  
VCC = 5.5V  
2.2  
2.6  
-1  
Logic Input High Voltage  
VIH  
V
Input Leakage Current  
Output Low-Sink Current  
Input Capacitance  
ILEAK  
ISINK  
CIN  
VIN = GND or VCC  
VOL = 0.6V  
µA  
mA  
pF  
6
5
4
Rev. B.01  
AME, Inc.  
Processor Thermal Monitor  
ATTM01/ATTM02  
6. Electrical Specifications  
Parameter  
SMBus-COMPATIBLE TIMING  
Serial Clock Frequency  
Symbol  
Test Conditions  
Min Typ Max Units  
(Note 2)  
fSMBCLK  
tBUF  
(Note 3)  
100 kHz  
Bus Free Time Between STOP and  
START Condition  
4.7  
µs  
START Condition Setup Time  
Repeat START Condition Setup Time  
START Condition Hold Time  
STOP Condition Setup Time  
Clock Low Period  
4.7  
50  
4
µs  
ns  
µs  
µs  
µs  
µs  
µs  
µs  
ns  
ns  
ms  
tSU:STA  
90% to 90%  
tHD:STA 10% of SMBDATA to 90% of SMBCLK  
tSU:STO 90% of SMBCLK to 90% of SMBDATA  
4
tLOW  
tHIGH  
tHD:DAT  
tR  
10% to 10%  
90% to 90%  
(Note 4)  
4.7  
4
Clock High Period  
Data Setup Time  
250  
Receive SMBCLK/SMBDATA Rise Time  
Receive SMBCLK/SMBDATA Fall Time  
Pulse Width of Spike Suppressed  
SMBus Timeout  
1
tF  
300  
60  
tSP  
0
tTIMEOUT SMBDATA low period for interface reset 25  
37  
45  
Note 1:All parameters tested at a single temperature. Specifications over temperature are guaranteed by design.  
Note 2: Timing specifications guaranteed by design.  
Note 3: The serial interface resets when SMBCLK is low for more than tTIMEOUT  
.
Note 4: A transition must internally provide at least a hold time to bridge the undefined region (300ns max) of  
SMBCLKs falling edge.  
Rev. B.01  
5
AME, Inc.  
ATTM01/ATTM02  
Processor Thermal Monitor  
7. Hardware Monitor Block  
Remote  
Data Control  
Logic  
Control  
Register  
SMBCLK  
DXP  
DXN  
Sigma Delta  
-
ADC  
Control  
SMBus  
Codec  
SMBDATA  
Local Data  
Control  
Logic  
Status  
Register  
ALERT _N  
OVER _N  
Hardware Monitor Interface  
This chip is using the 2-wire SMBus serial inter-  
face to control the hardware monitor function. The  
major function of the hardware monitor is monitored  
the remote diode and local diode temperature. It also  
using the trimmed mechanism to control the accu-  
racyof the temperature sensor under ± 1 . It also  
uses the 2-wire SMBus serial interface. The two in-  
terrupt outputs ALERT# and OVER# are active low  
at default state and can change these outputs to  
active high when set bit 1 of register address 8’ h31  
to logic one. The slave address of SMBus can se-  
lect by initial state of ALERT# when power on or  
access the command index 8’ h42. This chip pro-  
vides two slave address 7h1001000 and  
7h1001010 to avoid conflict with other devices.  
6
Rev. B.01  
AME, Inc.  
Processor Thermal Monitor  
ATTM01/ATTM02  
8. SMBus Protocol  
In this chip it supports the write byte and read byte mode protocol. The following is SMBus read/write data format.  
Write Byte Format:  
Slave  
Address  
START  
WR  
ACK  
COMMAND  
ACK  
DATA  
ACK  
STOP  
1 bit  
7 bits  
1 bit  
1 bit  
8 bits  
1 bit  
8 bits  
1 bit  
1 bit  
The COMMAND Byte is selects that register you are writing to. TheDATA Byte is data goes into the register set by  
the command byte (to set thresholds, configuration, and update rate).  
Read Byte Format:  
S
Address WR ACK COMMAND ACK  
7 bits 1 bit 1 bit 8 bits 1 bit  
S
Address1 RD  
8 bits 1 bit  
ACK DATA NAK STOP  
1 bit 8 bits 1 bit 1 bit  
1 bit  
1 bit  
The S denotes Start Bit. Address represents slave address. The COMMAND Byte is selects that register you are  
reading from. TheAddress1 is due to change in data flow direction. The DATA Byte is reads from the register set by the  
command byte. The in above table the red color denotes Slaver transmission.  
SMBus Write Timing Diagram:  
SMBCLK  
C
D
E
F
G
H
I
J
K
L
M
A
B
SMBDATA  
A =START CONDITION  
G =M SB OFDATA CLOCKED INTO SLAVE  
H =LSB OFDATA CLOCKED INTO SLAVE  
I=SLAVE PULLSSM BDATA BUSLOW  
J=ACKNOW LEDGE BIT CLOCKED INTO M ASTER  
K =ACKNOW LEDGE CLEAR PULSE  
B =M SB OFADDRESSCLCOKED INTO SLAVE  
C =LSB OFADDRESSCLOCKED INTO SLAVE  
D =R/W _BIT CLOCKED INTO SLAVE  
E =SLAVE PULL SM BDATA BUSLOW  
F=ACKNOW LEDGE BIT CLOCKED INTO M ASTER  
L =STOP CONDITION DATA EXECUTED BY SLAVE  
M =NEW START CONDITION  
Rev. B.01  
7
AME, Inc.  
Processor Thermal Monitor  
ATTM01/ATTM02  
SMBus Read Timing Diagram:  
SMBCLK  
M
A
B
C
D
E
F
G
H
I
J
K
L
SMBDATA  
G =M SB OFDATA CLOCKED INTO M ASTER  
H =LSB OFDATA CLOCKED INTO M ASTER  
I=M ASTER PULLSDATA BUSINTO LOW  
J=ACKNOW LEDGE BIT CLOCKED INTO SLAVE  
K =ACKNOW LEDGE CLEAR PULSE  
A =START CONDITION  
B =M SB OFADDRESSCLOCKED INTO SLAVE  
C =LSB OFADDRESSCLOCKED INTO SLAVE  
D =R/W _BIT CLOCKED INTO SLAVE  
E =SLAVE PULLSSM BDATA BUSLOW  
F=ACKNOW LEDGE BIT CLOCKED INTO M ASTER  
L =STOPCONDITION,DATA EXECUTED BY SLAVE  
M =NEW START CONDITION  
8
Rev. B.01  
AME, Inc.  
Processor Thermal Monitor  
ATTM01/ATTM02  
9. Hardware Monitor Register  
The following registers define the temperature sensor control and status registers, data registers and SMBus slave  
address register.  
9.1 Local Diode Higher Byte Temperature Register, Access Address: Command Index = 0h”  
Field  
Type  
Position  
Bits  
I
Function  
Local diode higher byte temperature data.  
ADCLOCA_DATA  
RO  
[7:0]  
8
0
Bit 7 denotes the sign bit. The LSB represents 1  
.
9.2 Remote Diode Higher Byte Temperature Register, Access Address: Command Index = 1h”  
Field  
Type Position  
Bits  
I
Function  
Remote diode higher byte temperature data.  
ADCREMOTE_DATA  
The bit 7 denotes the sign bit. The LSB represents  
the 1  
RO  
[7:0]  
8
0
.
9.3 Temperature Sensor Status Register, Access Address: Command Index = 2h”  
Field  
Type Position  
Bits  
I
Function  
BUSY  
RO  
[7]  
1
0
ADC converting data.  
The ADC measure the temperature of local diode that  
exceed the alerting high limit. When software reading  
this register it will reset to zero if active condition no  
more satisfy.  
LTHOT_REG  
LTCOOL_REG  
RTHOT_REG  
RC  
[6]  
1
1
1
0
0
0
The ADC measure the temperature of local diode that  
below the alerting low limit. When software reading this  
register it will reset to zero if active condition no more  
satisfy.  
RC  
RC  
[5]  
[4]  
The ADC measure the temperature of remote diode that  
exceed the alerting high limit. When software reading  
this register it will reset to zero if active condition no  
more satisfy.  
The ADC measure the temperature of remote diode that  
below the alerting low limit. When software reading this  
register it will reset to zero if active condition no more  
satisfy.  
RTCOOL_REG  
DIODE_OPEN  
RCRITI_REG  
RC  
RO  
RC  
[3]  
[2]  
[1]  
1
1
1
0
0
0
The ADC detects the DXP and DXN pins disconnect to  
remote diode.  
The ADC measure the temperature of remote diode that  
exceed the remote diode critical limit. When software  
reading this register it will reset to zero if active  
condition no more satisfy.  
The ADC measure the temperature of local diode that  
exceed the local diode critical limit. When software  
reading is register it will reset to zero if active condition  
no more satisfy.  
LCRITI_REG  
RC  
[0]  
1
0
Rev. B.01  
9
AME, Inc.  
Processor Thermal Monitor  
ATTM01/ATTM02  
9.4 ADC Configuration Register, Access Address: Command Index = 3h”  
Field  
Type  
Position  
Bits  
I
Function  
ALERT# mask. When set to “1” ALERT# interrupts  
are masked.  
ALERT_MASK  
RO  
[7]  
1
0
STOP  
RO  
NA  
[6]  
[5]  
1
1
0
0
When set to “1” the ADC will be terminated.  
Reserved. Not implemented.  
Reserved  
OVER# mask. When set to “1” OVER# interrupts is  
masked.  
CRITI_MASK  
Reserved  
RO  
NA  
[4]  
1
3
0
0
[3:1]  
Reserved. Not implemented.  
When set to “1” denotes three consecutive remote  
temperature measurement outside the Alerting,  
Critical limit.  
FAULT_QUEUE  
RO  
[0]  
1
0
9.5 ADC Conversion Rate Register, Access Address: Command Index = 4h”  
Field  
Type  
NA  
Position  
[7:5]  
Bits  
3
I
Function  
Reserved. Not implemented.  
Reserved  
0
0
UPDATE_RATE  
RO  
[4:0]  
5
ADC measure temperature value rate.  
9.6 Local Diode Alerting High Limit Register, Access Address: Command Index = 5h”  
Field  
Type Position  
RO [7:0]  
Bits  
I
Function  
Local diode alerting high limit register.  
LALERT_HIGH  
8
8’h50  
The default is set to 80 . The LSB denotes 1  
.
9.7 Local Diode Alerting Low Limit Register, Access Address: Command Index = 6h”  
Field  
Type Position  
RO [7:0]  
Bits  
I
Function  
Local diode alerting low limit register.  
LALERT_LOW  
8
0
The default is set to 0 . The LSB denotes 1  
.
9.8 Remote Diode Alerting High Limit Register, Access Address: Command Index = 7h”  
Field  
Type Position  
RO [7:0]  
Bits  
I
Function  
Remote diode alerting high limit register.  
RALERT_HIGH  
8
8’h50  
The default is set to 80 . The LSB denotes 1  
9.9 Remote Diode Alerting Low Limit Register, Access Address: Command Index = 8h”  
Field  
Type Position  
RO [7:0]  
Bits  
I
Function  
Remote diode alerting low limit. The default value  
is set to 0 . The LSB represents 1  
RLAERT_LOW  
0
.
10  
Rev. B.01  
AME, Inc.  
Processor Thermal Monitor  
ATTM01/ATTM02  
9.10 Temperature sensor Configuration Register, Access Address: Command Index = 9h”  
Field  
ALERT_MASK  
STOP  
Type Position  
Bits  
1
I
Function  
WO  
WO  
NA  
[7]  
[6]  
[5]  
0
0
0
When set to “1” ALERT# interrupt is masked.  
When set to “1” then the ADC will be terminated.  
Reserved. Not implemented.  
1
Reserved  
1
When set to “1” the Remote/Local diodes exceed  
the critical set point will no activated the OVER#  
pin..  
CRITI_MASK  
Reserved  
WO  
NA  
[4]  
1
4
0
0
[3:0]  
Reserved. Not implemented.  
9.11 ADC Conversion Rate Register, Access Address: Command Index = Ah”  
Field  
Type Position  
Bits  
I
Function  
Reserved  
N/A  
[7:4]  
4
0
Reserved. Not implemented.  
Control the ADC value update to SMBus register.  
The variable rate control can be used to reduce  
supply current in portable equipment application.  
4’h8: conversion rate is 16 Hz (default value), 4’h7:  
conversion rate is 8 Hz, 4’h6: conversion rate is 4  
Hz, 4’h5: conversion rate is 2 Hz, 4’h4: conversion  
rate is 1 Hz, 4’h3: conversion rate is 0.5 Hz, 4’h2:  
conversion rate is 0.25 Hz, 4’h1: conversion rate is  
0.125 Hz, 4’h0: conversion rate is 0.0625 Hz, other  
values are reserved.  
CONVERSIO_RATE  
WO  
[3:0]  
4
4’h8  
9.12 Local Diode Alerting High Limit Register, Access Address: Command Index = Bh”  
Field  
Type Position  
WO [7:0]  
Bits  
I
Function  
Setting the local diode alerting high limit register.  
LALERT_HIGH  
8
8’h50  
The default value is 80  
and the LSB denotes 1  
.
9.13 Local Diode Alerting Low Limit Register, Access Address: Command Index = Ch”  
Field  
Type Position  
WO [7:0]  
Bits  
I
Function  
Setting the local diode alerting low limit register. The  
default value is 0 and the LSB represents 1  
LAERT_LOW  
8
0
.
9.14 Remote Diode Alerting High Limit Temperature Register, Access Address: Command Index = Dh”  
Field  
Type Position  
Bits  
I
Function  
Host set the remote diode high limit temperature  
RHIGH_DATA  
value. The default value set to 80  
and LSB  
W/O  
[7:0]  
8
8’h50  
denotes 1  
.
Rev. B.01  
11  
AME, Inc.  
Processor Thermal Monitor  
ATTM01/ATTM02  
9.15 Remote Diode Alerting Low Limit Temperature Register, Access Address: Command Index = Eh”  
Field  
Type Position  
W/O [7:0]  
Bits  
I
Function  
Host set the remote diode low limit temperature value.  
RLOW_DATA  
8
0
The default value is 0  
and LSB represents 1  
.
9.16 One Shot Register, Access Address: Command Index = Fh”  
Field  
Type Position  
Bits  
I
Function  
Reserved. Not implemented.  
Reserved  
NA  
[7:1]  
[0]  
7
0
When want to reduce the supply current it can set bit  
6 of register 9 configuration register to “1” and also  
set this bit to “1” and then write to “0”, i.e., create a  
one shot pulse. The ADC will be ceased operation  
after measure one cycle per each remote/local diode.  
ONESHOT_ADC  
WO  
1
0
9.17 Remote Diode Lower Byte Temperature Register, Access Address: Command Index = 10h”  
Field  
Type Position  
Bits  
I
Function  
Reserved  
NA  
RO  
[7:1]  
[0]  
7
0
Reserved. Not implemented.  
The remote diode lower byte temperature data.  
ADCREMOTE_DATA  
1
0
The LSB denotes 0.5  
.
9.18 Remote Diode Temperature Offset Register, Access Address: Command Index = 11h”  
Field  
Type Position  
Bits  
I
Function  
Remote diode temperature offset register to adjust  
the decimated filter because of the PCB  
placement, routing, and different thermal diode.  
Two’s complement format.  
ROFFSET_DATA  
W/R  
[7:0]  
8
0
9.19 Remote Diode Critical Temperature Limit Register, Access Address: Command Index = 19h”  
Field  
Type Position  
W/R [7:0]  
Bits  
I
Function  
Remote diode critical temperature registers. The  
RCRITI_DATA  
8
8’h6E  
default value is 110  
and the LSB denotes 1  
.
9.20 Local Diode Critical Temperature Limit Register, Access Address: Command Index = 20h”  
Field  
Type Position  
W/R [7:0]  
Bits  
I
Function  
Local diode critical temperatures register. The  
LCRITI_DATA  
8
8’h55  
default is 85  
and the LSB denotes 1  
.
12  
Rev. B.01  
AME, Inc.  
Processor Thermal Monitor  
ATTM01/ATTM02  
9.21 Remote Diode Critical Hysteresis Temperature Register, Access Address: Command Index = 21h”  
Field  
Type Position  
Bits  
I
Function  
Reserved. Not implement.  
Hysteresis the remote diode temperature registers.  
The default value is 10 and LSB denotes 1  
Reserved  
NA  
[7:5]  
3
0
.
When temperature exceed the critical temperature  
limit the OVER# pin will be activate and the  
OVER# pin will be deactivate when temperature  
below the critical temperature limit minus this  
register value (CRITI_HYSTE).  
CRITI_HYSTE  
W/R  
[4:0]  
5
8’hA  
9.22 Local Diode Lower Byte Temperature Register, Access Address: Command Index = 30h”  
Field  
Type Position  
Bits  
I
Function  
Reserved  
NA  
RO  
[7:1]  
[0]  
7
0
Reserved. Not implemented.  
The local diode temperature data. The LSB  
ADCLOCAL_DATA  
1
0
denotes 0.5  
.
9.23 Thermal Sensor Control Register, Access Address: Command Index = 31h”  
Field  
Type Position  
Bits  
I
Function  
CLEAR_REG  
WR  
WR  
[7]  
[5]  
1
0
Clear the ADC data.  
Enable the local diode temperature data without  
moving average.  
EN_DIRECT  
1
1
0
0
Enable the remote diode temperature data without  
moving average.  
EN_RADC_DIR  
WR  
[4]  
When set to “1” then the internal clock and band  
gap voltage can output from ALERT# and OVER#,  
respectively.  
ANA_MODE  
WR  
WR  
[3]  
[2]  
1
1
0
1
EN_ADCLOCAL  
Enable the ADC measure the local diode.  
Change the polarity of ALERT# and OVER#. When  
set to “0” these two signals change to active high  
signal from active low.  
INT_POLARITY  
WR  
WR  
[1]  
[0]  
1
1
1
1
EN_ADCREMOTE  
Enable the ADC measure the remote diode.  
Rev. B.01  
13  
AME, Inc.  
Processor Thermal Monitor  
ATTM01/ATTM02  
9.24 Thermal Sensor Status Register, Access Address: Command Index = 32h”  
Field  
Type Position  
Bits  
I
Function  
When the voltage drop to 2.62V then this signal  
will be activated. Because when the voltage below  
2.62V the ADC can not normal operation.  
UVLO  
RO  
[7]  
1
1
The ADC analog circuit detects the DXP and DXN  
pins are short together.  
DIODE_SHORT  
Reserved  
RO  
NA  
[6]  
1
6
0
0
[5:0]  
Reserved. Not implemented.  
9.25 SMBus Control Register, Access Address: Command Index = 42h”  
Field  
Type Position  
Bits  
I
Function  
Select SMBus slave address. 0: slave address is  
7’h48, 1: slave address is 7’h4A. The SMBus slave  
address can determine from this register bit and  
also can pull up or pull down the ALERT# pin.  
When pull up ALERT# pin the slave address is  
7’h48, otherwise it is 7’h4A.  
ADDR_SEL  
WR  
[7]  
1
0
Reserved  
SOFT_RESET  
Reserved  
NA  
WR  
NA  
[6:4]  
[3]  
3
1
2
0
0
Reserved. Not implemented.  
Software reset the control logic.  
[2:1]  
2’b10 Reserved. Not implemented. Bit [2] always one.  
ADC free run mode, i.e., the ADC operation does  
not restrict by conversion rate.  
FREE_RUN_MODE  
WR  
[0]  
1
0
14  
Rev. B.01  
AME, Inc.  
Processor Thermal Monitor  
ATTM01/ATTM02  
10. Hardware Monitor ProgrammingGuide  
If want to this chip fully operation on PCB board the  
first step it need setting the remote and local diode off-  
set. This offset can eliminate the PCB trace, binding  
wire loading. When software setting the offset register  
to reduce side effect of PCB trace to minimum then the  
temperature data accuracy is 0.5 .  
Setting the bit 5, bit4 of Thermal Sensor Control Reg-  
ister can enable or disable the digital filter. When these  
bit set to logic one then the digital filter will be turned  
on, otherwise, these digital filter will be turned off.  
In this chip has a parity check mechanism to avoid  
the software reading remote or local temperature data  
and theADC converting temperature into this register. In  
other words, when the software reading the temperature  
data (register 8h0, 8h1, 8h10, 8h30) and at the  
same time the ADC want converting temperature data to  
register 8h0, 8h1, 8h10, or 8h30 then the parity  
check mechanism will halt theADC converting tempera-  
ture data to these registers before software read finish  
these register. In order to make parity check mecha-  
nism can work well when read the temperature data it  
need read the high byte temperature data at first and  
continue read the low byte temperature data, i.e., read  
the temperature data register the first need read regis-  
ter 8h0 or 8h1 and consecutive read register 8h30  
or 8h10.  
When the software want to reduce the supply current  
it can enable the one shot mode and this mode opera-  
tion only at standby mode, i.e., bit 6 of Configuration  
register set to 1. The software need set the bit 1 of  
register 8hF address to 1and consecutive set this  
bit to 1to generate one pulse signal.  
The bit 7 (BUSY) of status register will not effect the  
reading temperature data. Because of this bits only show  
thatADC converting data.  
Rev. B.01  
15  
AME, Inc.  
ATTM01/ATTM02  
Processor Thermal Monitor  
11. Package Dimension  
SOP-8  
MILLIMETERS  
INCHES  
MIN MAX  
SYMBOLS  
MIN  
1.35  
0.10  
MAX  
1.75  
0.30  
Top View  
Side View  
0.05315 0.0689  
0.00394 0.01181  
0.05799 REF  
A
A1  
A2  
B
C
D
E
C
1.473 REF  
E
H
0.33  
0.19  
4.80  
3.80  
0.51  
0.25  
5.33  
4.00  
0.01299 0.02008  
0.00748 0.00984  
0.18898 0.20984  
0.14961 0.15748  
0.05000 BSC  
D
L
θ
1.27 BSC  
e
Front View  
0.40  
5.80  
-
1.27  
6.30  
0.10  
8o  
0.01575 0.05000  
0.22835 0.24803  
L
7o(4X)  
H
y
-
0.00394  
8o  
0o  
0o  
q
e
B
16  
Rev. B.01  
AME, Inc.  
Processor Thermal Monitor  
ATTM01/ATTM02  
11. Package Dimension  
MSOP-8  
MILLIMETERS  
INCHES  
MIN  
SYMBOLS  
MIN  
-
MAX  
1.07  
0.20  
0.92  
0.38  
0.33  
0.23  
0.17  
3.10  
4.98  
3.10  
MAX  
0.04197  
0.008  
0.036  
0.015  
0.013  
0.009  
0.006  
0.122  
0.196  
0.122  
Top View  
DETAIL A  
A
A1  
A2  
b
-
D
e1  
0.05  
0.81  
0.28  
0.28  
0.13  
0.13  
2.90  
4.77  
2.90  
0.002  
0.032  
0.011  
0.011  
0.005  
0.005  
0.114  
0.188  
0.114  
TOP PKG.  
BTM PKG.  
b1  
c
θ
E1  
E
L2  
L
c1  
D
L1  
PIN 1 I.D  
E
(SHINNY SURFACE)  
E1  
e
0.65 TYP  
1.95 TYP  
0.406 0.686 0.01598 0.02701  
0.94 REF  
0.254 TYP  
0o 8o  
0.0255 TYP  
0.0767 TYP  
e1  
L
R0.127(0.005) TYP  
ALL CORNER  
& EDGES  
Front View  
0.037 REF  
0.010 TYP  
L1  
L2  
A2  
A1  
A
0o  
8o  
q
e
b
End View  
SECTION B-B  
b
BASE METAL  
b1  
B
c
c1  
B
E1  
WITH PLATING  
See Detail A  
Rev. B.01  
17  
www.ame.com.tw  
E-Mail: sales@ame.com.tw  
Life Support Policy:  
These products of AME, Inc. are not authorized for use as critical components in life-support  
devices or systems, without the express written approval of the president  
of AME, Inc.  
AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and  
advises its customers to obtain the latest version of relevant information.  
ã AME, Inc. , June 2007  
Document: ATT-DSATTM01/ATTM02-B.01  
Corporate Headquarter  
AME, Inc.  
U.S.A. (Subsidiary)  
Analog Microelectronics, Inc.  
3100 De La Cruz Blvd., Suite 201  
Santa Clara, CA. 95054-2438  
Tel : (408) 988-2388  
2F, 302 Rui-Guang Road, Nei-Hu District  
Taipei 114, Taiwan.  
Tel: 886 2 2627-8687  
Fax: 886 2 2659-2989  
Fax: (408) 988-2489  

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