r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1078

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

21. Serial Communication Interface with FIFO (SCIF)
21.3.5
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.
Rev.1.00 Jan. 10, 2008 Page 1048 of 1658
REJ09B0261-0100
Initial value:
Bit
15 to 8
7
6
R/W:
BIt:
Serial Mode Register (SCSMR)
Bit Name
—
C/A
CHR
15
⎯
R
0
14
⎯
R
0
13
⎯
R
0
Initial
Value
All 0
0
0
12
⎯
R
0
11
⎯
R
0
R/W
R
R/W
R/W
10
⎯
R
0
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
Communication Mode
Selects asynchronous mode or clocked synchronous
mode as the SCIF operating mode.
0: Asynchronous mode
1: Clocked synchronous mode
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
⎯
R
9
0
⎯
R
8
0
R/W
C/A
7
0
CHR
R/W
6
0
R/W
PE
5
0
R/W
O/E
4
0
STOP
R/W
3
0
⎯
R
2
0
CKS1
R/W
1
0
CKS0
R/W
0
0