| Data | ||
| Command # | Bits | Function |
| DSP Resets | ||
| 1 | 4-0 | Resets for the 5 DSP modules |
| Serial Data to DSPs | ||
| 2 | 15-0 | Load upper bits (31-16) for extended 32 bit commands |
| 3 | 7-0 | Load frame for transfers to DSP units |
| 4 | 15-0 | Load lower bits (15-0) for extended 32 bit command Send out the 32 bit data and frame on serial |
| Input/Link/Output Resets | ||
| 5 | 0 | Reset Hotlink Input and Link FPGAs (low true) |
| 1 | Reset Hotlink output FPGA (low true) | |
| 6 | xx | unused |
| Send Token | ||
| 7 | 0 | The auto-token enable bit. This allows tokens to be generated and sent to the input FPGA from a falling edge of active. |
| Serial Data to Input/Link/Output | ||
| 8 | 15-0 | Send a serial word to the Link FPGA (packed in software, see Link Commands) |
| 9 | 15-0 | Send a serial word to the Input FPGA (packed in software, see Input Commands) |
| 10 | 15-0 | Send a serial word to the Output FPGA (packed in software, see Output Commands) |
| Input/Link FPGA Configuration | ||
| 11 | 9-8 | Configuration Command to the LINK FPGAs |
| 7-0 | The configuration data byte | |
| 12 | 9-8 | Configuration Command to the INPUT FPGAs |
| 7-0 | The configuration data byte | |
| The Lights | ||
| 13 | 2-0 | The 3 programmable Lights |
| Initiate Input/Link/Output FPGA Serial Read | ||
| 14 | 15-0 | Send a serial word to the Link FPGA which initiates a read (packed in software, see Link Commands) |
| 15 | 15-0 | Send a serial word to the Input FPGA which initiates a read (packed in software, see Input Commands) |
| 16 | 15-0 | Send a serial word to the Output FPGA which initiates a read (packed in software, see Output Commands) |