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ADM1029ARQZ-R7

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42P43-P45P46-P48P49-P50
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Table 15. REGISTER MAP
Address DescriptionDefault ValueName
39 GPIO1 Event Mask 00h Enables/disables Fan 1 and/or Fan 2 alarm/hot-plug speed in
response to GPIO1 being asserted.
3A GPIO2 Event Mask 00h Enables/disables Fan 1 and/or Fan 2 alarm/hot-plug speed in
response to GPIO2 being asserted.
3B GPIO3 Event Mask 00h Enables/disables Fan 1 and/or Fan 2 alarm/hot-plug speed in
response to GPIO3 being asserted.
3C GPIO4 Event Mask 00h Enables/disables Fan 1 and/or Fan 2 alarm/hot-plug speed in
response to GPIO4 being asserted.
3D GPIO5 Event Mask 00h Enables/disables Fan 1 and/or Fan 2 alarm/hot-plug speed in
response to GPIO5 being asserted.
3E GPIO6 Event Mask 00h Enables/disables Fan 1 and/or Fan 2 alarm/hot-plug speed in
response to GPIO6 being asserted.
40 Local Temp Fault Action 08h Configures the operation of INT, CFAULT, etc. for a Local
Temp fault (internal temperature sensor).
41 Remote 1 Temp Fault Action 08h Configures the operation of INT, CFAULT, etc. for a Remote 1
Temp fault (D1 Temperature Sensor).
42 Remote 2 Temp Fault Action 08h Configures the operation of INT, CFAULT, etc. for a Remote 2
Temp fault (D2 Temperature Sensor).
48 Local Temp Cooling Action 00h Enables/disables Fan 1 and/or Fan 2 alarm/hot-plug speed in
response to a Local Temp event (internal temperature sensor).
49 Remote 1 Temp Cooling Action 00h Enables/disables Fan 1 and/or Fan 2 alarm/hot-plug speed in
response to a Remote 1 Temp event (D1 temperature sensor).
4A Remote 2 Temp Cooling Action 00h Enables/disables Fan 1 and/or Fan 2 alarm/hot-plug speed in
response to a Remote 2 Temp event (D2 temperature sensor).
50 AIN0 Behavior 00h Configures the operation of INT, CFAULT, etc. for a fault on
Analog Channel 0.
51 AIN1 Behavior 00h Configures the operation of INT, CFAULT, etc. for a fault on
Analog Channel 1.
58 AIN0 Event Mask 00h Enables/disables Fan 1 and/or Fan 2 alarm/hot-plug speed in
response to a fault on Channel 0.
59 AIN1 Event Mask 00h Enables/disables Fan 1 and/or Fan 2 alarm/hot-plug speed in
response to a fault on Channel 1.
60 Fan 1 Minimum/Alarm Speed FFh Contains the Minimum/Alarm speeds for Fan 1.
61 Fan 2 Minimum/Alarm Speed FFh Contains the Minimum/Alarm speeds for Fan 2.
68 Fan 1 Configuration 2Fh Configures hot-plug speed, PWM and tach frequency.
69 Fan 2 Configuration 2Fh Configures hot-plug speed, PWM and tach frequency.
70 Fan 1 Tach Value 00h
Contains the measured value from the Fan 1 tachometer
output.
71 Fan 2 Tach Value 00h
Contains the measured value from the Fan 2 tachometer
output.
78 Fan 1 Tach High Limit FFh Contains the high limit for Fan 1 tachometer measurement.
79 Fan 2 Tach High Limit FFh Contains the high limit for Fan 2 tachometer measurement.
80 Local Temp T
MIN
??h Defines the starting temperature for the fan when controlled by
the local temperature channel, under Automatic Fan Speed
Control.
81 Remote 1 Temp T
MIN
??h Defines the starting temperature for the fan when controlled by
the Remote 1 temperature channel, under Automatic Fan
Speed Control. (D1 Temp Sensor).
82 Remote 2 Temp T
MIN
??h Defines the starting temperature for the fan when controlled by
the Remote 2 temperature channel, under Automatic Fan
Speed Control. (D2 Temp Sensor).
ADM1029
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Table 15. REGISTER MAP
Address DescriptionDefault ValueName
88 Local Temp T
RANGE/THYST
51h This register programs the control range for the local
temperature control loop. It also defines the amount of
temperature hysteresis applied to the loop.
89 Remote 1 Temp T
RANGE/THYST
51h This register programs the control range for the Remote 1
temperature control loop. It also defines the amount of
temperature hysteresis applied to the loop.
8A Remote 2 Temp T
RANGE/THYST
51h This register programs the control range for the Remote 2
temperature control loop. It also defines the amount of
temperature hysteresis applied to the loop.
90 Local Temp High Limit 50h (80C) High limit for Local measurement (internal sensor).
91 Remote 1 Temp High Limit 64h (100C) High limit for Remote 1 measurement (D1 Sensor).
92 Remote 2 Temp High Limit 64h (100C) High limit for Remote 2 measurement (D2 Sensor).
98 Local Temp Low Limit 3Ch (60C) Low limit for Local Temp measurement (internal sensor).
99 Remote 1 Temp Low Limit 46h (70C) Low limit for Remote 1 measurement (D1 Sensor).
9A Remote 2 Temp Low Limit 46h (70C) Low limit for Remote 2 measurement (D2 Sensor).
A0 Local Temp Value 00h Measured value from local temp sensor.
A1 Remote 1 Temp Value 00h Measured value from D1 Remote Sensor.
A2 Remote 2 Temp Value 00h Measured value from D2 Remote Sensor.
A8 AIN0 High Limit FFh High limit for measurement on analog Channel 0.
A9 AIN1 High Limit FFh High limit for measurement on analog Channel 1.
B0 AIN0 Low Limit 00h Low limit for measurement on analog Channel 0.
B1 AIN1 Low Limit 00h Low limit for measurement on analog Channel 1.
B8 AIN0 Measured Value 00h Measured value of analog Channel 0.
B9 AIN1 Measured Value 00h Measured value of analog Channel 1.
NOTE: Question marks on this and following pages indicate bit settings that depend on the state of certain pins on power-up.
ADM1029
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CONFIGURATION REGISTERS
Table 16. REGISTER 01H − CONFIG REGISTER (POWER-ON DEFAULT 000? 000?)
Bit Name R/W Description
0 Install = ? R/W This bit reflects Bit 1 of Register 0x03 (Fans Supported In System).
1 Global INT mask = 0 R/W Setting this bit to 1 will disable the INT output for all interrupt sources.
2 ARA Disable = 0 R/W
Setting this bit to 1 will disable the SMBus Alert Response Address
feature.
3 Perform Free-Wheel Test = 0 R/W Setting this bit to 1 will initiate the Fan Free-Wheeling Test. While this test
is being performed normal monitoring of fan speeds, temperature and
voltages will be temporarily halted. This bit will automatically reset to 0
once the test is complete which will take about 10 seconds.
4 Start Monitoring = 0 R/W Set to 1 to start round robin monitoring cycle of voltage temperature and
fan speeds, fault detection, etc. While this bit is 0, all fans will run at Alarm
Speed. This bit is set at power-up; otherwise, if automatic fan speed
control is enabled by Pin 18.
5 Force CFAULT = 0 R/W Setting this bit to 1 forces CFAULT to be asserted (Low).
6 Force INT = 0 R/W Setting this bit to 1 forces INT to be asserted (Polarity depends on Bit 7).
7 INT Polarity = 0 R/W Polarity of INT when asserted. 1 means High and 0 means Low.
NOTE: Question marks on this and following pages indicate bit settings that depend on the state of certain pins on power-up.
Table 17. REGISTER 05H – GPIO PRESENT/AIN (POWER-ON DEFAULT 0????111)
Bit Name R/W Description
0 GPIO 0 = 1 R/W Indicates that GPIO0 is being used. Set to 1 on power-up, but can be
overwritten by software. Setting this bit to 0 means AIN0 is being used.
1 GPIO 1 = 1 R/W Indicates that GPIO1 is being used. Set to 1 on power-up, but can be
overwritten by software. Setting this bit to 0 means AIN1 is being used.
2 GPIO 2 = 1 R/W Indicates that GPIO2 is being used. Set to 1 on power-up, but can be
overwritten by software.
3 GPIO 3 = ? R/W Indicates that GPIO3 is being used. Setting this bit to 0 means TDM1 is
being used. The ADM1029 can detect on power-up if TDM1 is connected.
If so, this bit is set to 0, otherwise it is set to 1. The default setting can be
overwritten by software.
4 GPIO 4 = ? R/W Indicates that GPIO4 is being used. Setting this bit to 0 means TDM1 is
being used. The ADM1029 can detect on power-up if TDM1 is connected.
If so, this bit is set to 0, otherwise it is set to 1. The default setting can be
overwritten by software.
5 GPIO 5 = ? R/W Indicates that GPIO5 is being used. Setting this bit to 0 means TDM2 is
being used. The ADM1029 can detect on power-up if TDM2 is connected.
If so, this bit is set to 0, otherwise it is set to 1. The default setting can be
overwritten by software.
6 GPIO 6 = ? R/W Indicates that GPIO6 is being used. Setting this bit to 0 means TDM2 is
being used. The ADM1029 can detect on power-up if TDM2 is connected.
If so, this bit is set to 0, otherwise it is set to 1. The default setting can be
overwritten by software.
7 Reserved R Unused. Will read back 0.
NOTE: Question marks on this and following pages indicate bit settings that depend on the state of certain pins on power-up.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42P43-P45P46-P48P49-P50

ADM1029ARQZ-R7

Mfr. #:
Buy ADM1029ARQZ-R7
Manufacturer:
ON Semiconductor
Description:
IC SENSOR 2TEMP/FAN CTRL 24QSOP
Lifecycle:
New from this manufacturer.
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