#= BigEndian

CFGFRAME {
  0-1 bytes: field "SYNC" {
    0 byte: const "sync" u8 0xAA
    1 byte: field "type_ver" {}
  }
  2-3 bytes: field "framesize" u16
  4-5 bytes: field "idcode" u16
  6-7 bytes: field "soc" u16
  8-9 bytes: field "fracsec" u16
  10-11 bytes: field "time base" u16
}