MITSUBISHI MICROCOMPUTERS
M37271MF-XXXSP
M37271EF-XXXSP, M37271EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
10
Fig. 3. Memory map of special function register 1 (SFR1) (1)
0
: “0” immediately after reset
: Fix this bit to “0” ( do not write “1”)
: Nothing is allocated
■SFR1 area (addresses C0
16
to DF
16
)
D0
16
D1
16
D2
16
D3
16
D4
16
D5
16
D6
16
D7
16
D8
16
D9
16
DA
16
DB
16
DC
16
DD
16
DE
16
DF
16
C0
16
C1
16
C2
16
C3
16
C4
16
C5
16
C6
16
C7
16
C8
16
C9
16
CB
16
CC
16
CD
16
CE
16
CF
16
CA
16
Address
Port P5 (P5)
OSD control register (OC)
Horizontal position register (HP)
Block control register 1 (BC
1
)
Port P1 (P1)
Port P1 direction register (D1)
Port P3 (P3)
Port P3 direction register (D3)
Port P2 (P2)
Port P2 direction register (D2)
Register
Port P0 (P0)
Port P0 direction register (D0)
Block control register 2 (BC
2
)
Block control register 3 (BC
3
)
Block control register 4 (BC
4
)
Block control register 5 (BC
5
)
Block control register 6 (BC
6
)
Block control register 7 (BC
7
)
Block control register 13 (BC
13
)
Block control register 14 (BC
14
)
Block control register 15 (BC
15
)
Block control register 16 (BC
16
)
: undefined immediately after reset
?
b7
b0
Bit allocation State immediately after reset
?
00
16
b7
b0
?
00
16
?
00
16
?????
???
00000000
00000000
?
?
?
?
?
?
?
?
?
?
Port P4 (P4)
Port P4 direction register (D4)
OSD port control register (PF)
Port P6 (P6)
Block control register 8 (BC
8
)
Block control register 9 (BC
9
)
Block control register 10 (BC
10
)
Block control register 11 (BC
11
)
Block control register 12 (BC
12
)
RI2 I1GB
OUT1OUT2
0
????????
0000000
????????
?
?
?
?
?
?
?
OC6OC7 OC4OC5 OC2OC3 OC0OC1
00
16
BC
1
1BC
1
2BC
1
3BC
1
4BC
1
5BC
1
6BC
1
7BC
1
8
BC
2
1BC
2
2BC
2
3BC
2
4BC
2
5BC
2
6BC
2
7BC
2
8
BC
3
1BC
3
2BC
3
3BC
3
4BC
3
5BC
3
6BC
3
7BC
3
8
BC
4
1BC
4
2BC
4
3BC
4
4BC
4
5BC
4
6BC
4
7BC
4
8
BC
5
1BC
5
2BC
5
3BC
5
4BC
5
5BC
5
6BC
5
7BC
5
8
BC
6
1BC
6
2BC
6
3BC
6
4BC
6
5BC
6
6BC
6
7BC
6
8
BC
7
1BC
7
2BC
7
3BC
7
4BC
7
5BC
7
6BC
7
7BC
7
8
BC
8
1BC
8
2BC
8
3BC
8
4BC
8
5BC
8
6BC
8
7BC
8
8
BC
9
1BC
9
2BC
9
3BC
9
4BC
9
5BC
9
6BC
9
7BC
9
8
BC
10
1BC
10
2BC
10
3BC
10
4BC
10
5BC
10
6BC
10
7BC
10
8
BC
11
1BC
11
2BC
11
3BC
11
4BC
11
5BC
11
6BC
11
7BC
11
8
BC
12
1BC
12
2BC
12
3BC
12
4BC
12
5BC
12
6BC
12
7BC
12
8
BC
13
1BC
13
2BC
13
3BC
13
4BC
13
5BC
13
6BC
13
7BC
13
8
BC
14
1BC
14
2BC
14
3BC
14
4BC
14
5BC
14
6BC
14
7BC
14
8
BC
15
1BC
15
2BC
15
3BC
15
4BC
15
5BC
15
6BC
15
7BC
15
8
BC
16
1BC
16
2BC
16
3BC
16
4BC
16
5BC
16
6BC
16
7BC
16
8
HP6HP7 HP4HP5 HP2HP3 HP0HP1
00
16
?
???????
(145 Seiten)
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