SMR31—Serial mode register 31
H'98
SCI31
Bit
Initial value
Read/Write
7
COM31
0
R/W
6
CHR31
0
R/W
5
PE31
0
R/W
0
CKS310
0
R/W
2
MP31
0
R/W
1
CKS311
0
R/W
4
PM31
0
R/W
Clock select
0 0
0 1
1
1
1
ø clock
øw/2 clock
0
ø/16 clock
ø/64 clock
Multiprocessor mode
0
Multiprocessor communication
function disabled
1
Multiprocessor communication
function enabled
Stop bit length
0
1 stop bit
1
2 stop bits
Parity mode
0
Even parity
1
Odd parity
Parity enable
0
Parity bit addition and checking disabled
1
Parity bit addition and checking enabled
Character length
0
8-bit data/5-bit data
1
7-bit data/5-bit data
Communication mode
0
Asynchronous mode
1
Synchronous mode
3
STOP31
0
R/W
405