D12320VF25V Datasheet, PDF (495/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 12 Serial Communication Interface (SCI)
Table 12.8 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 Parity Stop Bit
Bit
Bit Length
0
0
0
0
0
Asynchronous
8-bit data No
1
mode
No
1 bit
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
Asynchronous
8-bit data Yes
—
1
mode (multi-
processor
1
—
0
format)
7-bit data
No
1 bit
2 bits
1 bit
—
1
2 bits
1
—
—
—
—
Synchronous mode 8-bit data No
None
Table 12.9 SMR and SCR Settings and SCI Clock Source Selection
SMR
Bit 7
C/A
0
1
SCR Settings
Bit 1 Bit 0
CKE1 CKE0 Mode
0
0
Asynchronous
1
mode
Clock
Source
Internal
1
0
External
1
0
0
Synchronous Internal
1
mode
1
0
External
1
SCI Transmit/Receive Clock
SCK Pin Function
SCI does not use SCK pin
Outputs clock with same frequency as bit
rate
Inputs clock with frequency of 16 times
the bit rate
Outputs serial clock
Inputs serial clock
Rev.7.00 Feb. 14, 2007 page 461 of 1108
REJ09B0089-0700