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参数资料
| 型号： | M38C81E7-XXXFP |
| 厂商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| 中文描述： | 单芯片8位CMOS微机 |
| 文件页数： | 11/51页 |
| 文件大小： | 874K |
| 代理商： | M38C81E7-XXXFP |
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11
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
38C8 Group
PRELIMINARY
Notice: This is not a final specification.
change.
Some parametric limits are subject to
MEMORY
Special Function Register (SFR) Area
The Special Function Register area in the zero page contains control
registers such as I/O ports and timers.
RAM
RAM is used for data storage and for stack area of subroutine calls
and interrupts.
ROM
The first 128 bytes and the last 2 bytes of ROM are reserved for
device testing and the rest is user area for storing programs.
Interrupt Vector Area
The interrupt vector area contains reset and interrupt vectors.
Zero Page
Access to this area with only 2 bytes is possible in the zero page
addressing mode.
Special Page
Access to this area with only 2 bytes is possible in the special page
addressing mode.
Fig. 8 Memory map diagram
192
256
384
512
640
768
896
1024
1536
2048
0
F
F
1
6
0
1
3
F
1
6
0
1
B
F
1
6
0
2
3
F
1
6
0
2
B
F
1
6
0
3
3
F
1
6
0
3
B
F
1
6
0
4
3
F
1
6
0
6
3
F
1
6
0
8
3
F
1
6
R
A
M
a
r
e
a
R
A
(
b
M
y
e
s
i
z
)
e
t
s
A
X
d
X
d
r
e
X
1
s
s
6
X
4
0
9
6
8
1
9
2
1
2
2
8
8
1
6
3
8
4
2
0
4
8
0
2
4
5
7
6
2
8
6
7
2
3
2
7
6
8
3
6
8
6
4
4
0
9
6
0
4
5
0
5
6
4
9
1
5
2
5
3
2
4
8
5
7
3
4
4
6
1
4
4
0
F
0
0
0
1
6
E
0
0
0
1
6
D
0
0
0
1
6
C
0
0
0
1
6
B
0
0
0
1
6
A
0
0
0
1
6
9
0
0
0
1
6
8
0
0
0
1
6
7
0
0
0
1
6
6
0
0
0
1
6
5
0
0
0
1
6
4
0
0
0
1
6
3
0
0
0
1
6
20
0
0
1
6
10
0
0
1
6
F080
16
E080
16
D080
16
C080
16
B080
16
A080
16
9080
16
8080
16
7080
16
6080
16
5080
16
4080
16
3080
16
2080
16
1080
16
R
O
M
a
r
e
a
R
O
(
b
M
y
e
s
i
z
)
e
t
s
Address
YYYY
16
Address
ZZZZ
16
0000
16
0040
16
0
4
3
0
1
6
F
0
0
1
6
F
D
C
1
6
F
F
E
1
6
FFFF
16
X
X
X
1
6
YYYY
16
ZZZZ
16
RAM
ROM
S
F
R
a
r
e
a
Not used
Interrupt vector area
R
e
s
e
r
1
v
e
2
d
8
b
R
y
O
t
M
e
s
a
r
e
a
(
)
Z
e
r
o
p
a
g
e
S
p
e
c
i
a
l
p
a
g
e
LCD display RAM area
Reserved ROM area
0130
16
0840
16
The stard address of the LCD display area can be switched either zero page (addresses 0040
16
–
00EF
16
) or 3 page (addresses
0340
16
–
03EF
16
) by software. Immediately after reset released, 3 page is selected.
0
3
4
0
1
6
L
C
D
d
i
s
p
l
a
y
R
A
M
a
r
e
a
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| M38D20F1XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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