Hitachi H8/3664 Hardware Manual page 284

Table 14.8 SMR Settings and Corresponding Data Transfer Formats
SMR Setting
Bit 7: Bit 6: Bit 2:
COM CHR MP
0 0 0
1
0 1
1
1 0
*
Note: * Don't care
Table 14.9 SMR and SCR3 Settings and Clock Source Selection
SMR SCR3
Bit 7: Bit 1:
COM CKE1
0 0
1
1 0
1
0 1
1 0
1 1
268
Bit 5: Bit 3:
PE STOP Mode
0 0 Asynchronous
mode
1
1 0
1
0 0
1
1 0
1
0 Asynchronous
*
mode
1
*
(multiprocessor
0
*
format)
1
*
Synchronous
* *
mode
Bit 0:
CKE0 Mode
0 Asynchronous
mode
1
0
0 Synchronous
mode
0
1 Reserved (Do not specify these combinations)
1
1
Communication Format
Data Length
8-bit data
7-bit data
8-bit data
7-bit data
8-bit data
Transmit/Receive Clock
Clock
Source SCK3 Pin Function
Internal I/O port (SCK3 pin not used)
Outputs clock with same frequency as
bit rate
External Outputs clock with frequency 16 times
bit rate
Internal Outputs serial clock
External Inputs serial clock
Multipro- Parity
cessor Bit Bit
No No
Yes
No
Yes
Yes No
No No
Stop Bit
Length
1 bit
2 bits
1 bit
2 bits
1 bit
2 bits
1 bit
2 bits
1 bit
2 bits
1 bit
2 bits
No