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LM79 데이터시트(PDF) 26 Page - National Semiconductor (TI)

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부품명 LM79
상세설명  Microprocessor System Hardware Monitor
PDF  31 Pages
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제조업체  NSC [National Semiconductor (TI)]
홈페이지  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM79 데이터시트(HTML) 26 Page - National Semiconductor (TI)

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Functional Description (Continued)
13.4 Interrupt Status Register 1 — Address 41h
Power on default <7:0> = 00h
Bit
Name
Read/Write
Description
0
IN0
Read Only
A one indicates a High or Low limit has been exceeded.
1
IN1
Read Only
A one indicates a High or Low limit has been exceeded.
2
IN2
Read Only
A one indicates a High or Low limit has been exceeded.
3
IN3
Read Only
A one indicates a High or Low limit has been exceeded.
4
Temperature
Read Only
A one indicates a High or Low limit has been exceeded.
5
BTI
Read Only
A one indicates an interrupt has occurred from the Board Temperature Interrupt (BTI)
input (O.S. output of multiple LM75 chips).
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> = 00h
Bit
Name
Read/Write
Description
0
IN4
Read Only
A one indicates a High or Low limit has been exceeded.
1
-IN5
Read Only
A one indicates a High or Low limit has been exceeded.
2
-IN6
Read Only
A one indicates a High or Low limit has been exceeded.
3
FAN3
Read Only
A one indicates the fan count limit has been exceeded.
4
Chassis Intrusion
Read Only
A one indicates Chassis Intrusion has gone high.
5
FIFO Overflow
Read Only
A one indicates an overflow in FIFO (POST RAM) i.e. 32nd location in FIFO has
been written via Port x0h or x4h.
6
SMI__IN
Read Only
A one indicates SMI__IN has gone low.
7
Reserved
Read Only
13.6 SMI Mask Register 1 — Address 43h
Power on default <7:0> = 00h
Bit
Name
Read/
Write
Description
0
IN0
Read/Write
A one disables the corresponding interrupt status bit for SMI interrupt.
1
IN1
Read/Write
A one disables the corresponding interrupt status bit for SMI interrupt.
2
IN2
Read/Write
A one disables the corresponding interrupt status bit for SMI interrupt.
3
IN3
Read/Write
A one disables the corresponding interrupt status bit for SMI interrupt.
4
Temperature
Read/Write
A one disables the corresponding interrupt status bit for SMI interrupt.
5
BTI
Read/Write
A one disables the corresponding interrupt status bit for SMI interrupt.
6
FAN1
Read/Write
A one disables the corresponding interrupt status bit for SMI interrupt.
7
FAN2
Read/Write
A one disables the corresponding interrupt status bit for SMI interrupt.
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