Measurement Computing PC104-DAS16JR/12 - Manual (Page 17)

WRITE
Writing any data to the register causes an immediate A/D conversion.
3.2.2 16-BIT BOARDS
A/D15
LSB
A/D14 A/D13 A/D12 A/D11 A/D10 A/D9 A/D8
0 1 2 3 4 5 6 7
A read/write register.
READ
On read, it contains the least significant eight digits of the Analog input data.
These eight bits of analog input data must be combined with the eight bits of
analog input data in BASE + 1, forming a complete 16 bit number. The data is in
the format 0 = minus full scale. 65,536 = +FS.
WRITE
Writing any data to the register causes an immediate A/D conversion.
BASE ADDRESS + 1
A/D7 A/D6 A/D5 A/D4 A/D3 A/D2 A/D1 A/D0
MSB
0 1 2 3 4 5 6 7
A Read-only register.
On read the most significant A/D byte is read.
3.3 CHANNEL MUX SCAN LIMITS REGISTER
BASE ADDRESS + 2
CH L1 CH L2 CH L4 CH L8 CH H1 CH H2 CH H4 CH H8
0 1 2 3 4 5 6 7
A read and write register.
READ
The current channel scan limits are read as one byte. The high channel number
scan limit is in the most significant 4 bits. The low channel scan limit is in the
least significant 4 bits.
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