![](http://datasheet.mmic.net.cn/330000/MB90F583B_datasheet_16438001/MB90F583B_30.png)
MB90580B Series
30
(Continued)
Address
Register name
Abbreviated
register
name
Read/write
Resource name
Initial value
76
H
Command register L
CMRL
R/W
IEBus
TM
controller
1
1
0
0
0
0
0
0
B
77
H
Command register H
CMRH
R/W
0
0
0
0
0
0
0
X
B
78
H
Status register L
STRL
R
0
0
1
1
XXXX
B
79
H
Status register H
STRH
R/W
0
0
XX
0
0
0
0
B
7A
H
Lock read register L
LRRL
R
XXXXXXXX
B
7B
H
Lock read register H
LRRH
R/W or R
1
1
1
0
XXXX
B
7C
H
Master address read register L
MARL
R
XXXXXXXX
B
7D
H
Master address read register H
MARH
R
1
1
1
1
XXXX
B
7E
H
Message length bit read register
DERR
R
XXXXXXXX
B
7F
H
Broadcast control bit read register
DCRR
R
0
0
0
XXXXX
B
80
H
Write data buffer
WDB
W
XXXXXXXX
B
81
H
Read data buffer
RDB
R
XXXXXXXX
B
82
H
Serial mode register 3
SMR3
R/W
UART3
0
0
0
0
0
0
0
0
B
83
H
Serial control register 3
SCR3
R/W
0
0
0
0
0
1
0
0
B
84
H
Serial input register 3/
serial output register 3
SIDR3/
SODR3
R/W
XXXXXXXX
B
85
H
Serial status register 3
SSR3
R/W
0
0
0
0
1
0
0
B
86
H
PWC noise filter register
RNCR
R/W
PWC noisefilter
0
0
0
B
87
H
Clock division control register 3
CDCR3
R/W
Communications
prescaler 3
0
1
1
1
1
B
88
H
Serial mode register 4
SMR4
R/W
UART4
0
0
0
0
0
0
0
0
B
89
H
Serial control register 4
SCR4
R/W
0
0
0
0
0
1
0
0
B
8A
H
Serial input register 4/
serial output register 4
SIDR4/
SODR4
R/W
XXXXXXXX
B
8B
H
Serial status register 4
SSR4
R/W
0
0
0
0
1
0
0
B
8C
H
Port 0 input pull-up resistor setup
register
RDR0
R/W
Port 0
0
0
0
0
0
0
0
0
B
8D
H
Port 1 input pull-up resistor setup
register
RDR1
R/W
Port 1
0
0
0
0
0
0
0
0
B
8E
H
Port 6 input pull-up resistor setup
register
RDR6
R/W
Port 2
0
0
0
0
0
0
0
0
B
8F
H
Clock division control register 4
CDCR4
R/W
Communications
prescaler 4
0
1
1
1
1
B
90
H
to
9D
H
(Disabled)