HD6413008VF25 Datasheet, PDF (398/688 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

12. Serial Communication Interface
Table 12.8 SMR Settings and Serial Communication Formats
Bit 7
C/A
0
1
SMR Settings
Bit 6
CHR
0
Bit 2
MP
0
Bit 5
PE
0
1
1
0
1
0
1
⎯
⎯
1
⎯
⎯
⎯⎯⎯
SCI Communication Format
Bit 3
STOP Mode
Data
Length
Multi-
processor Parity
Bit
Bit
Stop Bit
Length
0
Asyn-
8-bit data Absent Absent 1 bit
1
chronous
mode
0
2 bits
Present 1 bit
1
2 bits
0
7-bit data
Absent 1 bit
1
2 bits
0
Present 1 bit
1
2 bits
0
Asyn-
8-bit data Present Absent 1 bit
1
chronous
mode (multi-
0
processor ^{7-bit data}
2 bits
1 bit
1
format)
2 bits
⎯
Syn-
8-bit data Absent
chronous
mode
None
Table 12.9 SMR and SCR Settings and SCI Clock Source Selection
SMR
Bit 7
C/A
0
1
SCR Setting
SCI Transmit/Receive clock
Bit 1 Bit 0
CKE1 CKE0 Mode
Clock Source SCK Pin Function
0
0
Asynchronous Internal
1
mode
SCI does not use the SCK pin
Outputs clock with frequency matching the
bit rate
1
0
1
External
Inputs clock with frequency 16 times the bit
rate
0
0
Synchronous Internal
1
mode
Outputs the serial clock
1
0
External
Inputs the serial clock
1
Rev.4.00 Aug. 20, 2007 Page 352 of 638
REJ09B0395-0400