HD64F38602R Datasheet, PDF (289/552 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 14 Serial Communication Interface 3 (SCI3, IrDA)
Table 14.10 SMR and SCR Settings and Clock Source Selection
SMR
SCR
Bit 7 Bit 1 Bit 0
Transmit/Receive Clock
COM CKE1 CKE0 Mode
Clock Source SCK Pin Function
0
0
0
Asynchronous
Internal
1
mode
I/O port (SCK3 pin not used)
Outputs a clock with the same
frequency as the bit rate
1
0
External
Inputs a clock with a frequency
16 times the bit rate*
1
0
0
Clock synchronous Internal
1
0
mode
External
Outputs the serial clock
Inputs the serial clock
0
1
1
Reserved (Do not specify these combinations)
1
0
1
1
1
1
Note: * When the ABCS bit in SEMR is 1, inputs a clock with a frequency eight times the bit
rate.
Rev. 3.00 May 15, 2007 Page 257 of 518
REJ09B0152-0300