參數(shù)資料
型號(hào): M38503E4SS
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): 11/86頁
文件大小: 1193K
代理商: M38503E4SS
11
3850 Group (Spec. H)
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
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
0
1
0
0
1
6
0000
16
0
4
0
1
6
FF00
16
F
D
C
1
6
FFFE
16
FFFF
16
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
X
X
X
1
6
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
ZZZZ
16
RAM
R
O
M
0FF0
16
0FFF
16
SFR area
Not used
In
t
e
r
r
u
p
t
v
e
c
t
o
r
a
r
e
a
ROM area
R
e
s
e
r
(
v
1
e
2
d
8
R
b
O
t
e
M
s
)
a
r
e
a
y
Z
e
r
o
p
a
g
e
Special page
RAM area
R
A
(
b
M
y
e
s
i
z
)
e
t
s
A
X
d
X
d
X
r
e
X
1
s
s
6
R
O
(
b
M
y
e
s
i
z
)
e
t
s
Address
YYYY
16
Reserved ROM area
Address
ZZZZ
16
N
o
t
u
s
e
d
SFR area
(Note)
N
o
t
e
:
F
l
a
s
h
m
e
m
o
r
y
v
e
r
s
i
o
n
o
n
l
y
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