SH7785 Datasheet, PDF (1078/1692 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

21. Serial Communication Interface with FIFO (SCIF)
21.3.5 Serial Mode Register (SCSMR)
SCSMR is a 16-bit register used to set the SCIF's serial communication format and select the baud
rate generator clock source.
SCSMR can always be read from and written to by the CPU.
BIt: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ C/A CHR PE O/E STOP ⎯ CKS1 CKS0
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: R R R R R R R R R/W R/W R/W R/W R/W R R/W R/W
Bit
15 to 8
Bit Name
—
Initial
Value
All 0
7
C/A
0
6
CHR
0
R/W Description
R
Reserved
These bits are always read as 0. The write value should
always be 0.
R/W Communication Mode
Selects asynchronous mode or clocked synchronous
mode as the SCIF operating mode.
0: Asynchronous mode
1: Clocked synchronous mode
R/W Character Length
Selects 7 or 8 bits as the asynchronous mode data
length. In clocked synchronous mode, the data length is
fixed at 8 bits regardless of the CHR bit setting. When
7-bit data is selected, the MSB (bit 7) of SCFTDR is not
transmitted.
0: 8-bit data
1: 7-bit data
Rev.1.00 Jan. 10, 2008 Page 1048 of 1658
REJ09B0261-0100