rtd DM6210, User Manual

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4-4
BA + 0: Read A/D Data/Start Convert (Read/Write 16-bit)
A read provides the 12-bit converted data in the format below. The data is left justified and is coded in a
straight binary format.
' ' ' ' ' ' ' ' ' ' ' ' ' ' ' '
%LW %LW %LW %LW %LW %LW %LW %LW %LW %LW %LW %LW ; ; ; ;
' ' ' ' ' ' ' '
BA + 3: Read Board ID MSB (Read Only 8-bit)
A read at this address returns the MSB of the board ID register. The value returned should be hex 62.
A write at this address issues a Start Convert command (software trigger). The data written is irrelevant.
BA + 1: Reserved.
BA + 2: Read Board ID LSB (Read Only 8-bit)
A read at this address returns the LSB of the board ID register. The value returned should be hex 10.
BA + 4: Channel Select (Read/Write 8-bit)
This register is used to set the analog input channel. Reading this register returns the current settings.
' ' ' ' ' ' ' '
' ' ' ' ' ' ' '
1000 = channel 9
1001 = channel 10
1010 = channel 11
1011 = channel 12
1100 = channel 13
1101 = channel 14
1110 = channel 15
1111 = channel 16
Analog Input
Channel Select
0000 = channel 1
0001 = channel 2
0010 = channel 3
0011 = channel 4
0100 = channel 5
0101 = channel 6
0110 = channel 7
0111 = channel 8