HP 9112 manual Auto-Scan Bit, MUX Register Bit8 ~ Bit5

Only below modes are legal to be applied on the PCI-9112 card :

Bit 3	Bit	Bit	Bit	Mode Description
EIT	2	1	0
S	T	IN	D
	P	T	M
	S	X	A
	T		X
0	0	0	0	Software Trigger & Polling
0	1	0	1	Timer Pacer Trigger &
				DMA
0	1	1	0	Timer Pacer Trigger & INT
1	X	0	0	External Trigger & Polling
1	X	0	1	External Trigger & DMA
1	X	1	0	External Trigger & INT

Auto-Scan: ( Bit 4)

0:Auto Scan is disabled

Only channel [M3 M2 M1 M0] is converted only

1:The converted channel will be selected by the sequence [ M3 M2 M1 M0] to 0, for example, the MUX register is [0110] and the auto -scan bit is enabled, then the channel scan sequence is :

CH6, CH5, CH4, CH3, CH2, CH1, CH0, CH6, CH5, ...

MUX Register: ( Bit8 ~ Bit5)

The converted A/D channel is controlled by the register MUX, the format of MUX is show as table below.

Bit	Bit	Bit	Bit	Channel No.
8	7	6	5
M	M	M	M
3	2	1	0
0	0	0	0	CH0
0	0	0	1	CH1
0	0	1	0	CH2
...	...	...	...	...
1	1	1	0	CH14
1	1	1	1	CH15

Note : Signle-ended mode : channel is selected from CH0 ~ CH15. Differential mode : channel is selected from CH0 ~ CH5.

∙Gain: ( Bit12 ~ Bit9)

Registers Format ∙ 23