SAB82538 Datasheet, PDF (162/253 Pages) Infineon Technologies AG – ICs for Communications

Termination Character Register (READ/WRITE)
Value after RESET: 00_H
7
TCR
TCR7
SAB 82538
SAF 82538
ASYNC Mode
0
TCR0 (offset: 26)
TCR7–TCR0… Termination Character
If enabled via register RFC the received data stream is monitored for the
occurrence of a programmed “termination character”. When such a
character is found, an interrupt is issued if enabled via mask register IMR0.
The number of valid bytes in the RFIFO up to and including the termination
character is determined by reading the RBCL register.
Note: If selected character length is less than eight bits, leading (unused) bits of TCR
have to be set to “0”.
Data Format (READ/WRITE)
Value after RESET: 00_H
7
0
DAFO
0 XBRK STOP PAR1 PAR0 PARE CHL1 CHL0 (offset: 27)
Note: Unused bits have to be set to logical “0”.
XBRK…
Transmit Break
0… Normal operation for data transmission.
1… This command forces the T×D pin to go low, regardless of any data
being transmitted at this time. This command is executed immediately
(with the next rising edge of Transmit Clock) and the transmitter is
disabled. The current character is lost. However, the contents of XFIFO
are still available and are sent out as soon as this bit is reset. To avoid
this the Transmit Reset command XRES should be issued. If XBRK is
still set when XRES is issued the Break signal on T×D stays active.
Semiconductor Group
162