Renesas Hitachi H8S/2191, Hardware Manual

Page: 494 / 1065

Rev. 2.0, 11/00, page 467 of 1037
Table 23.8 SMR1 Settings and Serial Transfer Format Selection
SMR1 Settings SCI1 Transfer Format
Bit 7 Bit 6 Bit 2 Bit 5 Bit 3
C/
$$
CHR MP PE STOP Mode
Data
length Multiproc
-essor bit Parit
y bit Stop bit
length
0 1 bit 0
1
No
2 bits
0 1 bit
0
1
1
8-bit
data
Yes
2 bits
0 1 bit 0
1
No
2 bits
0 1 bit
1
0
1
1
Asynchro-
nous mode
7-bit
data
No
Yes
2 bits

0 1 bit 0

1
8-bit
data
2 bits

0 1 bit
0
1
1

1
Asynchro-
nous mode
(multi-
processor
format)
7-bit
data
Yes
2 bits
1
   
Clock
synchronous
mode 8-bit
data No
No
Table 23.9 SMR1 and SCR1 Settings and SCI1 Clock Source Selection
SMR1 SCR1 Setting
Bit 7 Bit 1 Bit 0 SCI1 Transfer Clock
C/
$$
CKE1 CKE0 Mode Clock Source SCK1 Pin Function
0 SCI1 does not use SCK1 pin 0
1
Internal
Outputs clock with same frequency
as bit rate
0
0
1
1
Asynchronous
mode
External Inputs clock with frequency of 16
times the bit rate
0 0
1
Internal Outputs serial clock
0
1
1
1
Clock
synchronous
mode
External Inputs serial clock