Commands
The commands to the controller are described. Each command consists of a command header
followed by a data section. For most of the command a standard data format is used.
The data is 68 bits longed followed by one bit for odd parity. There are some commands
which don't have any data section at all, and for the readevent command the data section is
only 2 bits long.
The following tables show all the commands to the controller. Some of the commands are
forwarded by the controller to the front-end chips connected to the controller.
Controller chips are addressed by a 4-bit address whereas front-end chips are addressed
by 5 bits. The MSB of the address is sent first. In the following table gggg stands
for the controller address and the most left g is the MSB. For the front-end
chip fffff is used as a place holder for the address.
Commands only to the GTRC
| cmd | bits | comments |
| NOOP |
1 gggg 0 fffff 00000 |
|
| reset gtrc |
1 gggg 0 fffff 00001 data |
|
| RD_GTRC_REG |
1 gggg 0 fffff 10000 |
read GTRC register. No data section. |
| RD_GTFE_SYNC |
1 gggg 0 fffff 10001 |
read Gtfe sync register. No data section. |
Commands to the GTFE
| cmd | bits | comments |
| RST_CHIP_GTFE |
1 gggg 1 fffff 00010 |
|
| CALIBRATE |
1 gggg 1 fffff 00011 P |
|
| LD_DATA_MASK |
1 gggg 1 fffff 01000 P data |
|
| LD_CAL_MASK |
1 gggg 1 fffff 01001 P data |
|
| LD_TRIG_MASK |
1 gggg 1 fffff 01010 P data |
|
| LD_DAC |
1 gggg 1 fffff 01011 P data |
|
| LD_MODE |
1 gggg 1 fffff 01100 P data |
|
| RD_DATA_MASK |
1 gggg 1 fffff 10000 P |
read GTFE data-mask register. No data section. |
| RD_CAL_MASK |
1 gggg 1 fffff 10001 |
read GTFE calibration-mask register. No data section. |
|
| RD_TRIG_MASK |
1 gggg 1 fffff 10010 |
read GTFE trigger-mask register. No data section. |
|
| RD_DAC |
1 gggg 1 fffff 10011 P |
read GTFE threshold/calibration dac register. No data section. |
|
| RD_MODE |
1 gggg 1 fffff 10100 P |
read GTFE direction/deaf register. No data section. |
| READEVT |
1 gggg 1 fffff 00100 P 1B1B0 |
|
Register
Send your suggestions or complaints about this page to
Wilko Kroeger
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Last modified: Fri Jun 1 15:45:26 PDT 2001
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