ADLINK PCI-9810 - Manual (Page 30)

18 Registers
ADC Channel Enable Register
The PCI-9812/9810 has four analog input channels: CH0, CH1,
CH2, and CH3. CH0 to CH3 may be enabled or disabled by bit 0
to bit 3 of the ADC channel enable register.
Address: BASE + 0
Attribute: Write only
Data Format:
Bit 7 6 5 4 3 2 1 0
BASE+0 — — — — CH3EN CH2EN CH1EN CH0EN
BASE+1 — — — — — — — —
BASE+2 — — — — — — — —
BASE+3 — — — — — — — —
Bit 31->4 Any value
Bit 3 CH3EN
Bit 2 CH2EN
Bit 1 CH1EN
Bit 0 CH0EN
Allowed combinations (refer to section 5.5) of these bits include:
0000 No channel is enabled.
0001 Only CH0 is enabled.
0011 CH0 and CH1 are enabled.
1111 All channels are enabled.