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LM81 데이터시트(PDF) 27 Page - National Semiconductor (TI)

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부품명 LM81
상세설명  Serial Interface ACPI-Compatible Microprocessor System
PDF  32 Pages
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제조업체  NSC [National Semiconductor (TI)]
홈페이지  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM81 데이터시트(HTML) 27 Page - National Semiconductor (TI)

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Functional Description (Continued)
13.7 Interrupt Mask Register 2 — Address 44h
Power on default – <7:0> = 0000 0000 binary
Bit
Name
Read/
Write
Description
0
+12Vin
Read/Write
A one disables the corresponding interrupt status bit for INT interrupt.
1
Vccp2
Read/Write
A one disables the corresponding interrupt status bit for INT interrupt.
2
Reserved
Read/Write
3
Reserved
Read/Write
4
Chassis Intrusion
Read/Write
A one disables the corresponding interrupt status bit for INT interrupt.
5
Reserved
Read/Write
6
Reserved
Read/Write
7
RESET Enable
Read/Write
<7> = 1 in INT Mask Register 2 enables the RESET in the Configuration Register.
13.8 Reserved Register — Address 45h
Power on default – <7:0> = 00h. Read/Write for backwards compatibility.
13.9 CI Clear Register — Address 46h
Power on default – <7:0> = 0000 0000 binary
Bit
Name
Read/
Write
Description
0-6
Reserved
Read/Write
7
CI Clear
Read/Write
A one outputs a minimum 20 ms active low pulse on the Chassis Intrusion pin. The
register bit self clears after the pulse has been output. This bit is mirrored in
Configuration Register bit 6.
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