SH7020 Datasheet, PDF (379/509 Pages) Renesas Technology Corp – SuperH™ RISC engine

Clocked Synchronous Mode:
• The communication format has a fixed eight-bit data length.
• In receiving, it is possible to detect overrun errors (ORER).
• An internal or external clock can be selected as the SCI clock source.
 When an internal clock is selected, the SCI operates using the on-chip baud rate generator,
and outputs a serial clock signal to external devices.
 When an external clock is selected, the SCI operates on the input serial clock. The on-chip
baud rate generator is not used.
Table 13.8 Serial Mode Register Settings and SCI Communication Formats
SMR Settings
SCI Communication Format
Mode
Bit 7: Bit 6: Bit 5: Bit 2: Bit 3: Data Parity Multipro- Stop Bit
C/A CHR PE MP STOP Length Bit
cessor Bit Length
Asynchronous 0
0
0
0
0
8-bit Absent Absent
1 bit
1
2 bits
1
0
Present
1 bit
1
2 bits
1
0
0
7-bit Absent
1 bit
1
2 bits
1
0
Present
1 bit
1
2 bits
Asynchronous
(multiprocessor
format)
0
*
*
1
*
1
0
1
0
8-bit Absent Present 1 bit
2 bits
7-bit
1 bit
*
1
2 bits
Clocked
1
*
*
*
*
8-bit
synchronous
Absent
None
Note: Asterisks (*) in the table indicate don’t-care bits.
RENESAS 364