| Field Name |
Length (bits) |
Bit |
Contents |
Description |
| Item |
Total |
Algn |
Off |
| writePram |
80 + 16*n |
16 |
0 |
command Packet |
Writes a block of words to DEA PRAM (see table 62, swreq Rev. I) |
header |
48 | 48 |
16 |
0 |
command Header |
Command Packet Header |
commandLength |
16 | 16 |
16 |
0 |
uint16 = 5+n |
Number of 16-bit words in the command packet |
commandIdentifier |
16 | 16 |
16 |
16 |
uint16 |
Used by ground to identify the command |
commandOpcode |
16 | 16 |
16 |
32 |
uint16 = 204 |
Command Operation code which determines format and action of the command [see enum CmdOpcode]: CMDOP_WRITE_PRAM |
ccdId |
4 | 4 |
16 |
48 |
uint4 |
CCD Controller containing PRAM to write to |
writeIndex |
16 | 16 |
16 |
64 |
uint16 |
Starting PRAM index to write to |
writeData[pl-5] |
16 | 16*n |
16 |
80 |
uint16 |
Words to write into PRAM |