Hitachi H8/329 Series Hardware Manual page 192

Table 8-5. Communication Formats Used by SCI
SMR settings
Bit 7 Bit 6 Bit 2 Bit 5 Bit 3
C/A CHR MP PE
0 0 0 0
1
1 0
1
0 1 —
1
1 — — —
Table 8-6. SCI Clock Source Selection
SMR SCR
Bit 7 Bit 1 Bit 0
C/A CKE1 CKE0
0 0 0
1
1 0
1
1 0 0
1
1 0
1
STOP Mode
0 Asynchronous mode 8 bits
1
0
1
0
1
0
1
0 Asynchronous mode 8 bits
1 (multiprocessor
0 format)
1
— Synchronous mode
Mode Clock source
Async Internal
External
Sync Internal
External
183
Communication format
Data Multipro- Parity Stop-bit
length cessor bit
None
7 bits
Present
7 bits
8 bits None
Serial transmit/receive clock
SCK pin function
Input/output port (not used by SCI)
Serial clock output at bit rate
Serial clock input at 16 × bit rate
Serial clock output
Serial clock input
bit length
None 1 bit
2 bits
Present 1 bit
2 bits
None 1 bit
2 bits
Present 1 bit
2 bits
None 1 bit
2 bits
1 bit
2 bits
None