Rainbow Electronics LM81 - Manual (Page 28)

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.
LM81
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