HD6433044 Datasheet, PDF (803/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer

SMR—Serial Mode Register
H'B0
SCI0
Bit
7
6
5
C/A GM CHR
PE
Initial value
0
0
0
Read/Write
R/W
R/W
R/W
7
3
2
O/E STOP MP
0
0
0
R/W R/W R/W
1
CKS1
0
R/W
0
CKS0
0
R/W
Multiprocessor mode
0 Multiprocessor function disabled
1 Multiprocessor format selected
Clock select 1 and 0
Bit 1 Bit 0
CKS1 CKS0 Clock Source
0
0 ø clock
1 ø/4 clock
1
0 ø/16 clock
1 ø/64 clock
Stop bit length
0 One stop bit
1 Two stop bits
Parity mode
0 Even parity
1 Odd parity
Parity enable
0 Parity bit is not added or checked
1 Parity bit is added and checked
Character length
0 8-bit data
1 7-bit data
Communication mode
(when using a serial communication interface)
0 Asynchronous mode
1 Synchronous mode
GSM mode (when using a smart card interface)
0 Regular smart card interface operation
1 GSM mode smart card interface operation
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