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10. Serial Communication Interface
Synchronous Mode:
• Transfer format: 8 bits
• Overrun error can be detected when data is received.
• Clock source: Choice of internal clocks or an external clock
When an internal clock is selected: Operates on baud rate generator clock, and outputs a serial
clock.
When an external clock is selected: The internal baud rate generator is not used. Operation is
synchronous with the input clock.
Table 10.11 SMR Settings and SCI3 Communication Format
SMR Setting
Bit 7:
Bit 6:
Bit 2:
Bit 5:
COM
CHR
MP
PE
0
0
0
0
1
1
0
1
0
1
*
*
1
*
*
1
0
*
*
Legend: * Don't care
Rev.3.00 Jul. 19, 2007 page 280 of 532
REJ09B0397-0300
Bit 3:
STOP Mode
0
Asynchronous
mode
1
0
1
0
1
0
1
0
Asynchronous
mode
1
(multiprocessor 7-bit data
0
format)
1
Synchronous
*
mode
Communication Format
Multipro-
Data Length
cessor Bit
8-bit data
No
7-bit data
8-bit data
Yes
8-bit data
No
Parity
Stop Bit
Bit
Length
No
1 bit
2 bits
Yes
1 bit
2 bits
No
1 bit
2 bits
Yes
1 bit
2 bits
No
1 bit
2 bits
1 bit
2 bits
None
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