Rainbow Electronics LM81 - Manual (Page 27)

Functional Description
(Continued)
13.4 Interrupt Status Register 1 — Address 41h
Power on default – < 7:0 > = 0000 0000 binary
Bit Name Read/Write Description
0 +2.5Vin Read Only A one indicates a High or Low limit has been exceeded.
1 Vccp1 Read Only A one indicates a High or Low limit has been exceeded.
2 +3.3Vin Read Only A one indicates a High or Low limit has been exceeded.
3 +5Vin Read Only A one indicates a High or Low limit has been exceeded.
4 Temperature Read Only A one indicates a HIGH or HIHYST temperature error, see SECTION 8.2.
5 Reserved Read Only
6 FAN1 Read Only A one indicates the fan count limit has been exceeded.
7 FAN2 Read Only A one indicates the fan count limit has been exceeded.
13.5 Interrupt Status Register 2 — Address 42h
Power on default – < 7:0 > = 0000 0000 binary
Bit Name Read/Write Description
0 +12Vin Read Only A one indicates a High or Low limit has been exceeded.
1 Vccp2 Read Only A one indicates a High or Low limit has been exceeded.
2 Reserved Read Only
3 Reserved Read Only
4 CI Read Only A one indicates CI (Chassis Intrusion) has gone high.
5 Reserved Read Only
6 Reserved Read Only
7 TLOW Read Only A one indicates LOW temperature error in EXTENDED MODE ONLY, see
SECTION 8.2.
13.6 Interrupt Mask Register 1 — Address 43h
Power on default – < 7:0 > = 0000 0000 binary
Bit Name Read/
Write
Description
0 +2.5Vin Read/Write A one disables the corresponding interrupt status bit for INT interrupt.
1 Vccp1 Read/Write A one disables the corresponding interrupt status bit for INT interrupt.
2 +3.3Vin Read/Write A one disables the corresponding interrupt status bit for INT interrupt.
3 +5Vin Read/Write A one disables the corresponding interrupt status bit for INT interrupt.
4 Temperature Read/Write A one disables the corresponding interrupt status bit for INT interrupt.
5 Reserved Read/Write
6 FAN1 Read/Write A one disables the corresponding interrupt status bit for INT interrupt.
7 FAN2 Read/Write A one disables the corresponding interrupt status bit for INT interrupt.
LM81
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