Table 15.8 SCSMR1 Settings for Serial Transfer Format Selection
SCSMR1 Settings
SCI Transfer Format
Multi-
Bit 7: Bit 6: Bit 2: Bit 5: Bit 3:
Data
processor Parity Stop Bit
C/$
CHR MP
PE
STOP Mode
Length
Bit
Bit
Length
0
0
0
0
0
1
0
1
0
1
0
1
0
1
0
1
*
Asynchronous 8-bit data No
mode
No
1 bit
2 bits
1 bit
1
0
1
*
Yes
No
2 bits
1 bit
1
7-bit data
2 bits
1 bit
Yes
No
2 bits
1 bit
0
1
*
1
Asynchronous 8-bit data Yes
mode
2 bits
1 bit
(multiprocessor
format)
7-bit data
2 bits
None
1
*
*
Synchronous
mode
8-bit data No
Note: An asterisk in the table means “Don’t care.”
Table 15.9 SCSMR1 and SCSCR1 Settings for SCI Clock Source Selection
SCSMR1
SCSCR1 Setting
SCI Transmit/Receive Clock
Clock
Source
Bit 7:
C/$
Bit 1:
Bit 0:
CKE0
CKE1
Mode
SCK Pin Function
0
0
0
1
Asynchronous Internal
mode
SCI does not use SCK pin
Outputs clock with same
frequency as bit rate
1
0
External Inputs clock with frequency of
16 times the bit rate
1
0
1
0
1
1
0
1
Synchronous
mode
Internal
Outputs serial clock
External Inputs serial clock
Rev. 6.0, 07/02, page 622 of 986
RENESAS [ RENESAS TECHNOLOGY CORP ]
