LM87CIMTX National Semiconductor, LM87CIMTX Datasheet - Page 27

• Manufacturer Part Number: LM87CIMTX
• Description: IC,Data Acquisition System,8-CHANNEL,8-BIT,TSSOP,24PIN,PLASTIC
• Manufacturer: National Semiconductor

Specifications of LM87CIMTX

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Bit
0-3
0-6
Bit
Bit
Bit
Bit
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
7
Functional Description
13.7 Interrupt Status Register 2 — Address 42h
Power on default –
13.8 Interrupt Mask Register 1 — Address 43h
Power on default –
13.9 Interrupt Mask Register 2 — Address 44h
Power on default –
13.10 Reserved Register — Address 45h
Power on default –
compatibility.
13.12 VID0-3/Fan Divisor Register — Address 47h
Power on default –
VID
+12Vin
Vccp2
Reserved
Reserved
CI
THERM#
D1 Fault
D2 Fault
<
VID
+2.5Vin/D2+
Vccp1
Vcc
+5Vin
Int. Temp.
Ext. Temp.
FAN1/AIN1
FAN2/AIN2
+12Vin
Vccp2
Reserved
Reserved
Chassis Intrusion
THERM#
D1 Fault
D2 Fault
Reserved
CI Clear
3:0
Name
<
>
Name
Name
3:0
Name
Name
>
<
<
<
<
Read/Write
<
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
7:0
7:4
7:0
7:0
7:0
>
>
Read Only
>
>
>
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read/Write
Read/Write
Read/Write
= 00h. Read/Write for backwards
is 0101, and
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
= 0000 0000 binary
= 0000 0000 binary
= 0000 0000 binary
A one disables the corresponding interrupt status bit for INT # interrupt.
A one disables the corresponding interrupt status bit for INT # interrupt.
A one disables the corresponding interrupt status bit for INT # interrupt.
A one disables the corresponding interrupt status bit for INT # interrupt.
A one disables the corresponding interrupt status bit for INT # interrupt.
A one disables the corresponding interrupt status bit for INT # interrupt.
A one disables the corresponding interrupt status bit for INT # interrupt.
A one disables the corresponding interrupt status bit for INT # interrupt.
<
(Continued)
A one disables the corresponding interrupt status bit for INT # interrupt.
A one disables the corresponding interrupt status bit for INT # interrupt.
A one disables the corresponding interrupt status bit for INT # interrupt.
A one disables the corresponding interrupt status bit for INT # interrupt.
A one disables the corresponding interrupt status bit for INT # interrupt.
A one disables the corresponding interrupt status bit for INT # interrupt.
A one outputs a minimum 20 ms (minimum) active low pulse on the Chassis Intrusion
pin. The register bit self clears after the pulse has been output.
3:0
The VID
operating voltage (e.g. 1.5 V to 2.9 V).
A one indicates a High or Low limit has been exceeded.
A one indicates a High or Low limit has been exceeded.
A one indicates the CI (Chassis Intrusion) input has gone high.
A one indicates the THERM# input has been pulled low by external circuitry.
A one indicates the D1 inputs are shorted to Vcc or open circuit.
A one indicates the D2 inputs are shorted to Vcc or open circuit.
>
is mapped to
<
3:0
>
inputs from the Pentium/PRO power supplies that indicate the
27
13.11 CI Clear Register — Address 46h
Power on default –
Description
Description
Description
Description
Description
<
7:0
>
= 0000 0000 binary
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