GR712RC-UM, Jun 2017, Version 2.9 147 www.cobham.com/gaisler
GR712RC
TX identifier 2, EFF frame
Bit 7:0 - Bit 20 downto 13 of 29 bit EFF identifier.
TX identifier 3, EFF frame
Bit 7:0 - Bit 12 downto 5 of 29 bit EFF identifier.
TX identifier 4, EFF frame
Bit 7:3 - Bit 4 downto 0 of 29 bit EFF identifier
Bit 2:0 - Don’t care
Data field
For SFF frames the data field is located at address 19 to 26 and for EFF frames at 21 to 28. The data is
transmitted starting from the MSB at the lowest address.
Table 141.TX identifier 2 address 18
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
ID.20 ID.19 ID.18 ID.17 ID.16 ID.15 ID.14 ID.13
Table 142.TX identifier 3 address 19
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
ID.12 ID.11 ID.10 ID.9 ID.8 ID.7 ID.6 ID.5
Table 143.TX identifier 4 address 20
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
ID.4 ID.3 ID.2 ID.1 ID.0 - - -