Hitachi H8S/2338 Series Hardware Manual page 425

Table 11-8 SMR Settings and Serial Transfer Format Selection
SMR Settings
Bit 7 Bit 6 Bit 2
C/A CHR MP
0 0 0
1
0 1
1
1 — —
Table 11-9 SMR and SCR Settings and SCI Clock Source Selection
SMR SCR Setting
Bit 7 Bit 1 Bit 0
C/A CKE1 CKE0
0 0 0
1
1 0
1
1 0 0
1
1 0
1
414
Bit 5 Bit 3
PE STOP Mode
0 0 Asynchronous
mode
1
1 0
1
0 0
1
1 0
1
— 0 Asynchronous
mode (multi-
— 1
processor
— 0
format)
— 1
— — Synchronous mode 8-bit data
Mode
Asynchronous
mode
Synchronous
mode
Data
Length
8-bit data
7-bit data
8-bit data
7-bit data
SCI Transmit/Receive Clock
Clock
Source SCK Pin Function
Internal SCI does not use SCK pin
Outputs clock with same frequency as bit
rate
External Inputs clock with frequency of 16 times
the bit rate
Internal Outputs serial clock
External Inputs serial clock
SCI Transfer Format
Multi-
processor Parity
Bit Bit
No No
Yes
No
Yes
Yes 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
None