Format of Input/Link/Output FPGA Serial Data (R/W)

Status/control data can be read/written to the input, link & output FPGAs by serial connections to VME. (using VME Commands 8-10 and VME Commands 9-11(R)) Data is sent MSB first.
Bits Meaning
Write Command Format
15-12 The chip number:
0-7 for Input and Link FPGAs
1 for Ouptut FPGA
11-8 The command
7-0 The data byte
Data Read Back
8 Data present and not yet read
7-0 The data byte