MB90480/485 Series
(1) Register List
15
8
7
0
CDCR
SCR
⎯
SMR
SSR
SIDR (R)/SODR (W)
8 bits
8 bits
Serial mode register (SMR)
000020H
7
6
5
4
3
2
1
0
Reserved
MD1
MD0
CS2
CS1
CS0
SCKE
SOE
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
X
R/W
0
R/W
0
Initial value
Initial value
Initial value
Initial value
Initial value
Serial control register (SCR)
000021H
15
14
P
13
12
11
10
9
8
PEN
SBL
CL
A/D
REC
RXE
TXE
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
W
1
R/W
0
R/W
0
Serial I/O register (SIDR/SODR)
7
6
5
4
3
2
1
0
000022H
D7
D6
D5
D4
D3
D2
D1
D0
R/W
X
R/W
X
R/W
X
R/W
X
R/W
X
R/W
X
R/W
X
R/W
X
Serial status register (SSR)
15
14
13
12
11
10
9
8
000023H
PE
ORE
FRE
RDRF TDRE
BDS
RIE
TIE
R
0
R
0
R
0
R
0
R
1
R/W
0
R/W
0
R/W
0
Communication prescaler control register (CDCR)
15
14
13
12
11
10
9
8
000025H
MD
SRST
⎯
⎯
DIV3
DIV2
DIV1
DIV0
R/W
0
R/W
0
⎯
⎯
⎯
⎯
R/W
0
R/W
0
R/W
0
R/W
0
37
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