Tait TM8100

32 CCDI TM8100/TM8200 Computer-Controlled Data Interface (CCDI) Protocol Manual
© Tait Electronics Limited April 2007
Valid GFI values are:
■ [SFI] is two ASCII characters giving the Specific Format Information
(SFI) of the SDM.
Valid SFI values are:
The following table shows valid GFI/SFI combinations. All other GFI/SFI
field values which are not shown in the table are available for future formats.
GFI Description Comment
0 As per “s” format (i.e. Text) Default for “s” command (ASCII SDM)
1 Binary Binary SDM
2 Text ASCII SDM
3 - 7 Spare Available for future GFIs
SFI Description Comment
00 Default Value Default Value
01 GPS_0 GPS related, CDP only.
02 Tex t Tex t
03 CCR SDM is directed to the CCR module. Refer to
“CCR SDM (TM8100 only)” on page 33.
04 Extended SDM Up to 128 bytes, split into multiple SDMs. Refer
to “Extended SDM” on page 33.
05 Extended SDM
Continuation
Continuation of an Extended SDM.Refer to
“Extended SDM” on page 33.
06 NMEA Request Request for radio to return a specified NMEA
string. Refer to “NMEA Request SDM” on
page 33.
07 - 31 Spare Available for future SFIs
GFI SFI Description Comment
0 00 As per “s” command (Text) General ASCII SDM
1 00 Binary General binary SDM
2 00 Te xt General ASCII SDM
1 01 GPS_0 GPS-related binary, non-CCDI2
compatible format
2 02 Te xt General ASCII SDM
2 03 CCR SDM for CCR control
1 04/05 Binary Binary SDM up to 128 bytes