ADM1024ARU-REEL ON Semiconductor, ADM1024ARU-REEL Datasheet - Page 27

• Manufacturer Part Number: ADM1024ARU-REEL
• Description: IC MONITOR SYS TEMP/VOLT 24TSSOP
• Manufacturer: ON Semiconductor

Specifications of ADM1024ARU-REEL

• Rohs Status: RoHS non-compliant
• Applications: PC's, PDA's
• Interface: Serial
• Voltage - Supply: 2.8 V ~ 5.5 V
• Package / Case: 24-TSSOP
• Mounting Type: Surface Mount

Table 12. Register 43h, INT Interrupt Mask Register 1 (Power−On Default, 00h)
Table 13. Register 44h, INT Interrupt Mask Register 2 (Power−On Default, 00h)
Table 14. Register 46h, Chassis Intrusion Clear (Power−On Default, 00h)
Table 15. Register 47h, VID0−3/FAN Divisor Register (Power−On Default, 0101(VID3−0))
Table 16. Register 49h, VID4/Device ID Register (Power−On Default, 1000000(VID4))
0–6
0–3
4–5
6–7
1–7
Bit
Bit
Bit
Bit
Bit
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
7
0
Chassis Int. Clear
2.5 V/Ext. Temp2
THERM (Input)
FAN1 Divisor
FAN2 Divisor
Ext. Temp1
FAN1/A
FAN2/A
Reserved
Reserved
Reserved
Reserved
Int. Temp
D1 Fault
D2 Fault
V
V
Name
Name
Name
Name
Name
5.0 V
VID4
12 V
V
VID
CCP1
CCP2
CI
CC
IN1
IN2
Read only
Read only
Read only
Read only
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
A 1 disables the corresponding interrupt status bit for INT interrupt.
A 1 disables the corresponding interrupt status bit for INT interrupt.
A 1 disables the corresponding interrupt status bit for INT interrupt.
A 1 disables the corresponding interrupt status bit for INT interrupt.
A 1 disables the corresponding interrupt status bit for INT interrupt.
A 1 disables the corresponding interrupt status bit for INT interrupt.
A 1 disables the corresponding interrupt status bit for INT interrupt.
A 1 disables the corresponding interrupt status bit for INT interrupt.
A 1 disables the corresponding interrupt status bit for INT interrupt.
A 1 disables the corresponding interrupt status bit for INT interrupt.
Powerup Default Set to Low.
Powerup Default Set to Low.
A 1 disables the corresponding interrupt status bit for INT interrupt.
A 1 disables the corresponding interrupt status bit for INT interrupt.
A 1 disables the corresponding interrupt status bit for INT interrupt.
A 1 disables the corresponding interrupt status bit for INT interrupt.
Undefined, always reads as 00h.
A 1 outputs a minimum 20 ms active low pulse on the Chassis Intrusion pin. The
register bit clears itself after the pulse has been output.
The VID<3:0> inputs from processor core power supplies to indicate the operating
voltage (e.g., 1.3 V to 3.5 V).
Sets counter prescaler for FAN1 speed measurement.
<5:4> = 00 – divide by 1
<5:4> = 01 – divide by 2
<5:4> = 10 – divide by 4
<5:4> = 11 – divide by 8
Sets counter prescaler for FAN2 speed measurement.
<7:6> = 00 – divide by 1
<7:6> = 01 – divide by 2
<7:6> = 10 – divide by 4
<7:6> = 11 – divide by 8
VID4 Input from Pentium
Undefined, always reads as 1000 000(VID4)
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Description
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