ADM1024
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25
ADM REGISTERS
Table 10. ADDRESS POINTER REGISTER
Bit
Name
R/W
Description
7–0
Address Pointer
W
Address of ADM1024 registers. See the following tables for details.
Table 11. LIST OF REGISTERS
Hex
Addr
Description
Power-on Value
(Binary Bit 70)
Notes
13h
Internal Temperature
Hardware Trip Point
= 70C
Can be written only if the write once bit in Configuration Register 2
has not been set. Values higher than 70C will have no affect as the
fixed trip point in register 16h will be reached first.
14h
External Temperature
Hardware Trip Point
= 85C
Can be written only if the write once bit in Configuration Register 2
has not been set. Values higher than 85C will have no affect as the
fixed trip point in register 17h will be reached first.
15h
Test Register
0000 00X0
Setting Bit 0 of this register to 1 selects shutdown mode. Caution: Do
not write to any other bits in this register.
16h
Channel Mode Register
0000 0000
This register configures the input channels and configures VID0 to
VID4 as processor voltage ID or interrupt inputs.
17h
Internal Temperature
Fixed Hardware Trip Point
= 70C
Read Only. Cannot be changed.
18h
External Temperature
Fixed Hardware Trip Point
= 85C
Read Only. Cannot be changed.
19h
Programmed Value of Analog
Output
1111 1111
1Ah
AIN1 Low Limit
Indeterminate
1Bh
AIN2 Low Limit
Indeterminate
20h
2.5 V Measured Value/Ext. Temp2
Indeterminate
Read Only
21h
VCCP1 Measured Value
Indeterminate
Read Only
22h
VCC Measured Value
Indeterminate
Read Only
23h
5.0 V Value
Indeterminate
Read Only
24h
12 V Measured Value
Indeterminate
Read Only
25h
VCCP2 Measured Value
Indeterminate
Read Only
26h
Ext. Temp1 Value
Indeterminate
Read Only. Stores the measurement from a diode sensor connected
to Pins 13 and 14.
27h
Internal Temperature Value
Indeterminate
Read Only. This register is used to store eight bits of the internal
temperature reading.
28h
FAN1/AIN1 Value
Indeterminate
Read Only. Stores FAN1 or AIN1 reading, depending on the
configuration of Pin 5.
29h
FAN2/AIN1 Value
Indeterminate
Read Only. Stores FAN2 or AIN2 reading, depending on the
configuration of Pin 6.
2Ah
Reserved
Indeterminate
2Bh
2.5 V/Ext. Temp2 High Limit
Indeterminate
Stores high limit for 2.5 V input or, in temperature mode, this register
stores the high limit for a diode sensor connected to
Pins 17 and 18.
2Ch
2.5 V/Ext. Temp2 Low Limit
Indeterminate
Stores low limit for 2.5 V input or, in temperature mode, this register
stores the low limit for a diode sensor connected to
Pins 17 and 18.
2Dh
VCCP1 High Limit
Indeterminate
2Eh
VCCP1 Low Limit
Indeterminate
2Fh
VCC High Limit
Indeterminate
30h
VCC Low Limit
Indeterminate
31h
5.0 V High Limit
Indeterminate
32h
5.0 V Low Limit
Indeterminate
33h
12 V High Limit
Indeterminate