參數(shù)資料
型號: M38C2XMX
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述: 單芯片8位CMOS微機(jī)
文件頁數(shù): 11/63頁
文件大?。?/td> 1000K
代理商: M38C2XMX
11
38C2 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
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
0100
16
0
0
0
1
6
0
0
4
4
0
1
C
1
6
0
0
1
8
F
0
4
E
00
1
0
1
0
1
6
F
0
0
1
6
F
D
C
1
6
F
F
F
F
E
1
F
1
6
6
1
2
3
5
6
7
8
0
5
0
9
5
8
1
4
6
9
2
3
4
2
6
4
2
0
8
6
4
6
8
1
1
2
XXXX
16
0
0
0
0
0
0
0
0
0
0
1
1
2
2
3
3
4
6
8
F
3
B
3
B
3
B
3
3
3
F
1
F
1
F
1
F
1
F
1
F
1
F
1
F
1
F
1
F
1
6
6
6
6
6
6
6
6
6
6
4
8
2
6
0
4
8
2
6
0
5
9
3
7
1
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
9
9
8
8
8
7
7
6
6
6
5
5
4
4
4
6
2
8
4
0
6
2
8
4
0
6
2
8
4
0
1
1
2
2
2
3
3
4
4
4
5
5
6
F
E
D
C
B
A
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
6
6
6
6
6
6
6
6
6
6
6
6
6
F
E
D
C
B
A
9
8
7
6
5
4
3
2
1
0
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
6
6
6
6
6
6
6
6
6
6
6
6
6
Y
Y
Y
1
6
Z
Z
Z
1
6
RAM
ROM
R
A
M
R
a
M
y
r
e
s
t
e
a
i
s
A
(
b
z
)
e
A
X
d
d
r
e
X
1
s
s
6
X
X
ROM area
R
O
M
(
b
y
e
s
i
z
)
e
t
s
Address
YYYY
16
Address
ZZZZ
16
R
e
s
e
r
v
e
d
a
r
e
a
S
F
R
a
r
e
a
N
S
F
o
t
R
u
s
a
e
r
d
a
Interrupt vector area
R
e
s
e
r
1
v
e
2
d
8
b
R
O
y
t
M
e
s
a
r
e
a
(
)
Zero
page
S
p
p
a
e
g
c
e
i
a
l
L
C
D
d
i
s
p
l
a
y
R
A
M
a
r
e
a
R
e
s
e
r
v
e
d
R
O
M
a
r
e
a
e
6
6
6
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