![](http://datasheet.mmic.net.cn/330000/MB90V520_datasheet_16438189/MB90V520_27.png)
MB90520 Series
27
(Continued)
Address
Abbreviated
register
name
Register name
Read/
write
Resource name
Initial value
000062
H
000063
H
000064
H
000065
H
000066
H
000067
H
000068
H
000069
H
00006A
H
00006B
H
00006C
H
OCS01
OCU control status register ch.01
R/W
16-bit I/O timer
(output compare 0
(OCU) section)
0 0 0 0 XX 0 0
B
XXX 0 0 0 0 0
B
0 0 0 0 XX 0 0
B
XXX 0 0 0 0 0
B
0 0 0 0 0 0 0 0
B
0 0 0 0 0 0 0 0
B
0 0 0 0 0 0 0 0
B
OCS23
OCU control status register ch.23
R/W
TCDT2
Free-run timer data register 2
R/W
16-bit I/O timer
(16-bit free-run
timer 2 section)
TCCS2
Free-run timer control status register 2
R/W
(Disabled)
LCR0
LCR1
LCDC control registers 0 and 1
R/W
R/W
LCD controller/
driver
0 0 0 1 0 0 0 0
B
0 0 0 0 0 0 0 0
B
XXXXXXXX
B
OCP7
OCU compare register ch.7
R/W
16-bit I/O timer
(output compare 1
(OCU) section)
00006D
H
XXXXXXXX
B
00006E
H
(Disabled)
00006F
H
ROMM
ROM mirroring function selection
register
W
ROM mirroring
function
selection module
XXXXXXX 1
B
000070
H
to
00007F
H
000080
H
000081
H
000082
H
000083
H
000084
H
VRAM
RAM for LCD indication
R/W
LCD controller/
driver
XXXXXXXX
B
UDCR0
UDCR1
RCR0
RCR1
CSR0
Up/down count register 0
Up/down count register 1
Re-load compare register 0
Re-load compare register 1
Counter status register 0
R
R
W
W
8/16-bit up/down
counter/timer
0, 1
0 0 0 0 0 0 0 0
B
0 0 0 0 0 0 0 0
B
0 0 0 0 0 0 0 0
B
0 0 0 0 0 0 0 0
B
0 0 0 0 0 0 0 0
B
R/W
000085
H
(Reserved area)*
3
000086
H
000087
H
000088
H
CCRL0
CCRH0
CSR1
Counter control register 0
R/W
8/16-bit up/down
counter/timer
0, 1
X 0 0 0 0 0 0 0
B
0 0 0 0 0 0 0 0
B
0 0 0 0 0 0 0 0
B
Counter status register 1
R/W
000089
H
(Reserved area)*
3
00008A
H
CCRL1
Counter control register 1
R/W
8/16-bit up/down
counter/timer
0, 1
X 0 0 0 0 0 0 0
B
00008B
H
CCRH1
X 0 0 0 0 0 0 0
B
00008C
H
RDR0
Port 0 input pull-up resistor setup
register
Port 1 input pull-up resistor setup
register
Port 4 input pull-up resistor setup
register
R/W
Port 0
0 0 0 0 0 0 0 0
B
00008D
H
RDR1
R/W
Port 1
0 0 0 0 0 0 0 0
B
00008E
H
RDR4
R/W
Port 4
0 0 0 0 0 0 0 0
B