Document Number: 002-04578 Rev. *A
Page 22 of 64
MB90910 Series
(Continued)
Address
Register
Abbrevia-
tion
Access
Resource name
Initial value
000020
H
Serial Mode Register 0
SMR0
W, R/W
UART0
000000000
B
000021
H
Serial Control Register 0
SCR0
W, R/W
00000000
B
000022
H
Reception/Transmission Data Register 0
RDR0/TDR0
R/W
00000000
B
/
111111111
B
000023
H
Serial Status Register 0
SSR0
R, R/W
00001000
B
000024
H
Extended Communication Control
Register 0
ECCR0
R, W,
R/W
000000XX
B
000025
H
Extended Status/Control Register 0
ESCR0
R/W
00000X00
B
000026
H
Baud Rate Generator Register 00
BGR00
R/W, R
00000000
B
000027
H
Baud Rate Generator Register 01
BGR01
R/W, R
00000000
B
000028
H
Serial Mode Register 1
SMR1
W, R/W
UART1
00000000
B
000029
H
Serial Control Register 1
SCR1
W, R/W
00000000
B
00002A
H
Reception/Transmission Data Register 1
RDR1/TDR1
R/W
00000000
B
/
11111111
B
00002B
H
Serial Status Register 1
SSR1
R, R/W
00001000
B
00002C
H
Extended Communication Control
Register 1
ECCR1
R, W,
R/W
000000XX
B
00002D
H
Extended Status/Control Register 1
ESCR1
R/W
00000X00
B
00002E
H
Baud Rate Generator Register 10
BGR10
R/W, R
00000000
B
00002F
H
Baud Rate Generator Register 11
BGR11
R/W, R
00000000
B
000030
H
to
00003A
H
Reserved
00003B
H
Address Detect Control Register 1
PACSR1
R/W
Address Match
Detection 1
11000000
B
00003C
H
to
000043
H
Reserved
000044
H
PPGA Operation Mode Control Register
PPGCA
W, R/W
16-bit PPG A/B
01000111
B
000045
H
PPGB Operation Mode Control Register
PPGCB
W, R/W
01000001
B
000046
H
PPGA/B Count Clock Select Register
PPGAB
R/W
00000010
B
000047
H
Reserved
000048
H
PPG C Operation Mode Control Register
PPGCC
W, R/W
16-bit PPG C/D
01000111
B
000049
H
PPG D Operation Mode Control Register
PPGCD
W, R/W
01000001
B
00004A
H
PPG C/PPG D Count Clock Select
Register
PPGCD
R/W
00000010
B
00004B
H
Reserved