XC161 Datasheet, PDF (335/419 Pages) Infineon Technologies AG – 16-Bit Single-Chip Microcontroller with C166SV2 Core Volume 2 (of 2): Peripheral Units

XC161 Derivatives
Peripheral Units (Vol. 2 of 2)
Serial Data Link Module SDLM
Table 22-1 Abbreviations Used
Symbol Name
Description
SOF
Start of Frame The SOF mark is used to uniquely identify the start of a
frame. SOF is not used for CRC error calculation.
DATA_0 - Data bytes
DATA_N
Data bytes (8 bits); starting with MSB first; maximum
frame length including header byte(s) and IFR byte(s) but
excluding frame delimiters (SOF, EOD, EOF, and IFS)
and CRC byte is 11 bytes.
CRC
CRC byte
Cyclic redundancy check byte; generated at the
transmission and checked during reception.
EOD
End of Data
Indicates the end of a transmission by the originator of a
frame; directly after EOD an IFR can be started by the
recipient(s) of the frame.
NB
Normalization Required for 10.4 Kbps mode only; follows after an EOD
Bit
and before an IFS symbol; defines the start of an in-frame
response.
IFR_1 -
IFR_N
In-Frame
Response
byte(s)
In Frame Response byte(s) (ID) can be sent by receiving
devices after the sending device has sent an EOD.
EOF
End of Frame This symbol defines the end of a frame.
IFS
Inter-Frame This symbol separates two consecutive frames.
Separation
idle
idle
The bus is idle if no transmission takes place.
User’s Manual
SDLM_X, V2.0
22-4
V2.2, 2004-01