HD64F38024HV Datasheet, PDF (381/684 Pages) Renesas Technology Corp – Hardware Manual Renesas 8-Bit Single-Chip Microcomputer H8 Family/H8/300L Super Low Power Series

Section 10 Serial Communication Interface
Table 10.8 SMR Settings and Corresponding Data Transfer Formats
SMR
Data Transfer Format
Bit 7 Bit 6 Bit 2 Bit 5 Bit 3
COM CHR MP PE STOP Mode
Data Length Parity Bit
Stop Bit
Length
0
0
0
0
0
Asynchronous 8-bit data
No
1
mode
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
0
Setting prohibited
1
1
0
Asynchronous 5-bit data
No
1
mode
1 bit
2 bits
1
0
0
Setting prohibited
1
1
0
Asynchronous 5-bit data
Yes
1
mode
1 bit
2 bits
1
*
0
*
*
Synchronous 8-bit data
No
No
mode
*: Don’t care
Table 10.9 SMR and SCR3 Settings and Clock Source Selection
SMR SCR3
Bit 7 Bit 1 Bit 0
Transmit/Receive Clock
COM CKE1 CKE0 Mode
Clock Source SCK32 Pin Function
00
0
Asynchronous Internal
1
mode
I/O port (SCK32 pin not used)
Outputs clock with same frequency as bit rate
1
0
External
Inputs clock with frequency 16 times bit rate
10
0
Synchronous Internal
1
0
mode
External
Outputs serial clock
Inputs serial clock
01
1
Reserved (Do not specify these combinations)
10
1
11
1
Rev. 8.00 Mar. 09, 2010 Page 359 of 658
REJ09B0042-0800