Renesas SH7781 User Manual
Page 1102
21. Serial Communication Interface with FIFO (SCIF)
Rev.1.00 Jan. 10, 2008 Page 1072 of 1658
REJ09B0261-0100
Clocked Synchronous Mode
• Data length: Fixed at 8 bits
• LSB first for data transmission and reception
• Detection of overrun errors during reception
• Choice of peripheral clock (Pck) or SCIF_SCK pin input as SCIF clock source
When peripheral clock (Pck) is selected: The SCIF operates on the baud rate generator clock
and a serial clock is output to external devices.
When SCIF_SCK pin input is selected: The on-chip baud rate generator is not used and the
SCIF operates on the input serial clock.
Table 21.4 SCSMR Settings for Serial Transfer Format Selection
SCSMR Settings
SCIF Transfer Format
Bit 7:
C/
A
Bit 6:
CHR
Bit 5:
PE
Bit 3:
STOP Mode
Data
Length
Parity
Bit
Stop Bit
Length
0 1
bit
0
1
No
2 bits
0 1
bit
0
1
1
8-bit data
Yes
2 bits
0 0
1
bit
1
No
2 bits
0 1
bit
0
1
1
1
Asynchronous mode
7-bit data
Yes
2 bits
1 x x x Clocked
synchronous
mode
8-bit data
No
No
Legend:
x: Don't care