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 4848 16 0 command Header Command Packet Header
    commandLength 1616 16 0 uint16 = 5+n Number of 16-bit words in the command packet
    commandIdentifier 1616 16 16 uint16 Used by ground to identify the command
    commandOpcode 1616 16 32 uint16 = 204 Command Operation code which determines format and action of the command [see enum CmdOpcode]: CMDOP_WRITE_PRAM
  ccdId 44 16 48 uint4 CCD Controller containing PRAM to write to
  writeIndex 1616 16 64 uint16 Starting PRAM index to write to
  writeData[pl-5] 1616*n 16 80 uint16 Words to write into PRAM

Definition of variables
n the dimension of the writeData array [pl-5]
pl the value of the commandLength field