SH7014 Datasheet, PDF (368/754 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

12. Serial Communication Interface (SCI)
Transmit/Receive Formats: Table 12.10 shows the 12 communication formats that can be
selected in the asynchronous mode. The format is selected by settings in the serial mode register
(SMR).
Table 12.10 Serial Communication Formats (Asynchronous Mode)
SMR Bits
CHR PE MP STOP
Serial Transmit/Receive Format and Frame Length
1 2345678 9
10 11 12
0 00 0
START
8-Bit data
STOP
0 00 1
START
8-Bit data
STOP STOP
0 10 0
START
8-Bit data
P STOP
0 10 1
START
8-Bit data
P STOP STOP
1 00 0
START
7-Bit data
STOP
1 00 1
START
7-Bit data
STOP STOP
1 10 0
START
7-Bit data
P STOP
1 10 1
START
0 ⎯1 0
START
0 ⎯1 1
START
1 ⎯1 0
START
1 ⎯1 1
START
Legend:
START: Start bit
STOP: Stop bit
P:
Parity bit
MPB: Multiprocessor bit
⎯:
Don't care
7-Bit data
8-Bit data
8-Bit data
7-Bit data
7-Bit data
P STOP STOP
MPB STOP
MPB STOP STOP
MPB STOP
MPB STOP STOP
Clock: An internal clock generated by the on-chip baud rate generator or an external clock input
from the SCK pin can be selected as the SCI transmit/receive clock. The clock source is selected
by the C/A bit in the serial mode register (SMR) and bits CKE1 and CKE0 in the serial control
register (SCR) (table 12.9).
Rev.5.00 Sep. 27, 2007 Page 334 of 716
REJ09B0398-0500