- 您现在的位置：买卖IC网 > PDF目录365226 > M38C89E2-XXXFP (Mitsubishi Electric Corporation) SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER PDF资料下载
参数资料
| 型号： | M38C89E2-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： | 13/51页 |
| 文件大小： | 874K |
| 代理商： | M38C89E2-XXXFP |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页当前第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页
13
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
I/O PORTS
[Direction Registers]
The I/O ports P0
–
P3 and P4
1
–
P4
7
have direction registers which
determine the input/output direction of each individual pin. Each bit
in a direction register corresponds to one pin, each pin can be set to
be input port or output port.
When
“
0
”
is written to the bit corresponding to a pin, that pin be-
comes an input pin. When
“
1
”
is written to that bit, that pin becomes
an output pin.
If data is read from a pin set to output, the value of the port output
latch is read, not the value of the pin itself. Pins set to input are float-
ing. If a pin set to input is written to, only the port output latch is
written to and the pin remains floating.
Pull-up Control
By setting the PULL register A (address 0016
16
) or the PULL register
B (address 0017
16
), ports P0 to P4 except for port P4
0
can control
pull-up with a program.
However, the contents of PULL register A and PULL register B do not
affect ports programmed as the output ports.
Fig. 10 Structure of PULL register A and PULL register B
P
P
P
P
P
P
P
N
0
0
–
0
4
–
1
0
–
1
4
–
2
0
–
2
4
–
3
0
–
o
P
P
P
P
P
P
P
s
0
3
0
7
1
3
1
7
2
3
2
7
3
3
e
d
p
p
p
p
p
p
p
(
u
u
u
u
u
u
u
r
e
l
l
l
l
l
l
l
l
l
l
l
l
l
l
t
-
-
-
-
-
-
-
u
u
u
u
u
u
u
u
r
p
p
p
p
p
p
p
n
t
u
“
0
”
w
h
e
n
r
e
a
d
)
PULL register A
(PULLA: address 0016
16
)
0: No pull-up
1: Pull-up
b7
b0
N
o
t
e
:
T
n
h
o
e
t
a
c
o
f
f
n
e
t
e
t
n
p
t
o
s
t
o
s
f
p
P
U
r
o
L
g
L
r
a
r
m
e
g
m
i
s
e
t
d
e
r
a
A
s
t
a
h
n
e
d
P
u
U
t
p
L
u
L
t
p
r
e
o
g
r
i
.
s
t
e
r
B
d
o
c
r
o
t
N
P
P
P
P
P
P
P
o
4
1
4
2
4
3
4
4
4
5
4
6
4
7
t
u
p
p
p
p
p
p
p
s
u
u
u
u
u
u
u
e
l
l
l
l
l
l
l
d
l
-
l
-
l
-
l
-
l
-
l
-
l
-
(
p
p
p
p
p
p
p
r
e
t
u
r
n
“
0
”
w
h
e
n
r
e
a
d
)
u
u
u
u
u
u
u
b
7
b0
PULL register B
(PULLB: address 0017
16
)
相关PDF资料 |
PDF描述 |
|---|---|
| M38C89E3-XXXFP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38C89E4-XXXFP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38C89E5-XXXFP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38C88E6-XXXFP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38C88E8-XXXFP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M38D20F1XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38D20F1XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38D20F2XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38D20F2XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38D20F3XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
发布紧急采购，3分钟左右您将得到回复。