H83644 Datasheet, PDF (321/508 Pages) Hitachi Semiconductor – H8/3644 Series Hardware Manual

Table 10.11 SMR Settings and Corresponding Data Transfer Formats
SMR Setting
Communication Format
Bit 7: Bit 6: Bit 2: Bit 5: Bit 3:
COM CHR MP PE STOP Mode
Multipro- Parity Stop Bit
Data Length cessor Bit Bit Length
00000
1
Asynchronous 8-bit data
No
mode
No 1 bit
2 bits
10
Yes 1 bit
1
2 bits
1
00
7-bit data
No 1 bit
1
2 bits
10
Yes 1 bit
1
2 bits
01*0
*1
1
*0
*1
Asynchronous 8-bit data
Yes
mode
(multiprocessor
7-bit data
format)
No 1 bit
2 bits
1 bit
2 bits
1*0**
Synchronous 8-bit data
No
mode
No No
Note: * Don’t care
Table 10.12 SMR and SCR3 Settings and Clock Source Selection
SMR
Bit 7:
COM
0
1
0
1
1
SCR3
Bit 1: Bit 0:
CKE1 CKE0
0
0
1
1
0
0
0
1
0
1
1
0
1
1
1
Transmit/Receive Clock
Mode
Asynchronous
mode
Clock
Source
Internal
SCK₃ Pin Function
I/O port (SCK₃ pin not used)
Outputs clock with same frequency as
bit rate
External Outputs clock with frequency 16 times
bit rate
Synchronous
mode
Internal Outputs serial clock
External Inputs serial clock
Reserved (Do not specify these combinations)
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