EVAL-ADM1022 Datasheet, PDF (13/14 Pages) Analog Devices – Evaluation Board for Microprocessor System Temperature Monitor

EVAL-ADM1022
APPENDIX A. ADM1022 REGISTERS
More detailed information on each of the registers may be found in the ADM1022 datasheet.
TABLE7. LIST OF ADM1022 REGISTERS
Register Name
Address A7 - A0 in hex
Comments
Value Registers
Company ID
Revision
0x13 – 0x3A
0x3E
0x3F
Configuration Register
Interrupt Status Register
Interrupt Mask Register
Interrupt Status Register Mirror
0x40
0x41
0x43
0x4C
See Table 8
This location will contain the company identification
number. This register is read only.
This location will contain the revision number of the
part in the lower four bits of the register [3:0]. The
upper four bits reflect the ADM1022 Version Number
[7:4]. The first version is 1100. The next version of
ADM1022 would be 1101, etc. For instance, if the
stepping were A0 and this part is a ADM1022, then
this register would read 1100 0000. This register is
read only.
Power on value = 0010 0101
Power on value = 0000 0000
Power on value = 0000 0000
Power on value = 0000 0000
TABLE 8. REGISTERS 0X13- 0X3A VALUE REGISTERS
Address Read/Write
Description
0x13 Read/Write
Programmable Local Temp Sensor Automatic Trip Point - default 70 degrees C.
This register can only be written to if the write once bit in the configuration register
(0x40, bit 3) has not been set.
0x14 Read/Write
Programmable Remote Thermal Diode Automatic Trip Point - default 100 degrees C.
This register can only be written to if the write once bit in the configuration register
(0x40, bit 3) has not been set.
0x15 Read/Write
Test register for manufacturer’s use only. Do not write to this register
0x17 Read Only
Default Local Temp Sensor Automatic Trip Point - default 70 degrees C
Cannot be changed. Disabled when bit 3 of Config. register is set
0x18 Read Only
Default Remote Thermal Diode Automatic Trip Point - default 100 degrees C
Cannot be changed. Disabled when bit 3 of Config register is set
0x19 Read/Write
Analog Output, FAN_SPD (defaults to 0x00h)
0x20 Read Only
External Temperature Value Diode 2
0x26 Read Only
External Temperature Value Diode 1
0x27 Read Only
Internal Temperature
0x2B Read/Write
External Temperature Diode 2 High Limit
0x2C Read/Write
External Temperature Diode 2 Low Limit
0x37 Read/Write
External Temperature Diode 1 High Limit
0x38 Read/Write
External Temperature Diode 1 Low Limit
0x39 Read/Write
Internal Temperature High Limit
0x3A Read/Write
Internal Temperature Low Limit
REV. B
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