Rainbow Electronics LM87 - Manual (Page 25)

Functional Description
(Continued)
13.3 Test Register — Address 15h
Power on default – < 7:0 > = 00000000 binary
Bit Name Read/Write Description
0 Shutdown Read/Write A one places the LM87 in a lower power "Shutdown" mode.
1 Reserved Read/Write
2 Reserved Read/Write
3 Reserved Read/Write
4 Reserved Read/Write
5 Reserved Read/Write
6 Reserved Read/Write
7 Reserved Read/Write
13.4 Channel Mode Register — Address 16h
Power on default – < 7:0 > = 00000000 binary
Bit Name Read/Write Description
0 FAN1/AIN1 Read/Write A one enables the input as AIN1, a zero enables the input as FAN1.
1 FAN2/AIN2 Read/Write A one enables the input as AIN2, a zero enables the input as FAN2.
2 2.5V, V
CCP2
/D2 Read/Write A one enables the 2.5V, V
CCP2
/D2 inputs as a second remote diode temperature input.
3 Int. V
CC
Range Read/Write A one configures the LM87 for 5.0V V
CC
measurement. A zero configures it for 3.3V
V
CC
measurement.
4 IRQ0 EN Read/Write A one enables pin 24 as an active low interrupt input. Bit 7 must also be set to
configure the VID/IRQ inputs to IRQ mode.
5 IRQ1 EN Read/Write A one enables pin 23 as an active low interrupt input. Bit 7 must also be set to
configure the VID/IRQ inputs to IRQ mode.
6 IRQ2 EN Read/Write A one enables pin 22 as an active low interrupt input. Bit 7 must also be set to
configure the VID/IRQ inputs to IRQ mode.
7 VID/IRQ Read/Write A one configures the VID/IRQ inputs as Interrupt Inputs. A zero configures the VID/IRQ
inputs as VID inputs only.
LM87
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