Datasheet

Section 14 Serial Communication Interface (SCI)
Rev.6.00 Sep. 27, 2007 Page 627 of 1268
REJ09B0220-0600
Table 14.8 SMR Settings and Serial Transfer Format Selection
SMR Settings
SCI Transfer Format
Bit 7 Bit 6 Bit 2 Bit 5 Bit 3
C/A CHR MP PE STOP Mode
Data
Length
Multi-
processor
Bit
Parity
Bit
Stop Bit
Length
0 0 0 0 0 8-bit data No No 1 bit
1
Asynchronous
mode
2 bits
1 0 Yes 1 bit
1 2 bits
1 0 0 7-bit data No 1 bit
1 2 bits
1 0 Yes 1 bit
1 2 bits
0 1 — 0 8-bit data Yes No 1 bit
1
—
—
—
1
0
1
Asynchronous
mode (multi-
processor
format)
7-bit data
2 bits
1 bit
2 bits
1 — — — — Synchronous mode 8-bit data No None
Table 14.9 SMR and SCR Settings and SCI Clock Source Selection
SMR SCR Setting SCI Transmit/Receive Clock
Bit 7 Bit 1 Bit 0
C/A CKE1 CKE0 Mode
Clock
Source
SCK Pin Function
0 0 0 Internal SCI does not use SCK pin
1
Asynchronous
mode
Outputs clock with same frequency as bit
rate
1 0 External
1
Inputs clock with frequency of 16 times
the bit rate
1 0 0 Internal Outputs serial clock
1
1
0
1
Synchronous
mode
External Inputs serial clock