參數(shù)資料
型號： M38867M8A-A11HP
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
文件頁數(shù)： 35/110頁
文件大?。?/td> 1601K
代理商： M38867M8A-A11HP
35
3886 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
BUS INTERFACE
The 3886 group has a 2-byte bus interface function which is al-
most functionally equal to MELPS8-41 series and the control
signal from the host CPU side can operate it (slave mode).
It is possible to connect the 3886 group with the RD and WR
separated CPU bus directly. Figure 34 shows the block diagram of
the bus interface function.
The data bus buffer function I/O pins (P4
2
, P4
3
, P4
6
, P4
7
, P5
0
–
P5
3
, P8) also function as the normal digital port I/O pins. When bit
0 (data bus buffer enable bit) of the data bus buffer control regis-
ter (address 002A
16
) is “0,” these pins become the normal digital
port I/O pins. When it is “1,” these bits become the data bus buffer
function I/O pins.
The selection of either the single data bus buffer mode, which
uses 1 byte: data bus buffer 0 only, or the double data bus buffer
mode, which uses 2 bytes: data bus buffer 0 and data bus buffer
1, is performed by bit 1 (data bus buffer function selection bit) of
the data bus buffer control register (address 002A
16
). Port P4
7
be-
comes S
1
input in the double data bus buffer mode. When data is
written from the host CPU side, an input buffer full interrupt oc-
curs. When data is read from the host CPU, an output buffer
empty interrupt occurs. This microcomputer shares two input
buffer full interrupt requests and two output buffer empty interrupt
requests as shown in Figure 32, respectively.
Fig. 32 Interrupt request circuit of data bus buffer
In
f
u
p
l
l
u
f
t
l
b
g
u
f
f
e
r
a
0
I
B
F
0
In
f
u
p
l
l
u
f
t
l
b
g
u
f
f
e
r
a
1
I
B
F
1
R
d
i
s
t
i
e
n
c
g
t
i
e
o
d
n
g
c
e
i
c
e
r
u
i
t
O
g
n
e
e
n
-
s
r
h
a
o
t
i
t
g
p
u
c
l
i
s
r
e
c
e
n
u
i
t
O
g
n
e
e
n
-
s
r
h
a
o
t
i
t
g
p
u
c
l
i
s
r
e
c
e
n
u
i
t
In
r
e
p
q
u
u
t
e
b
s
u
t
f
s
f
e
i
g
r
f
a
u
l
l
i
n
I
B
t
e
F
r
r
u
p
t
n
l
O
f
u
u
l
l
t
p
f
l
u
a
t
g
b
0
u
f
f
e
r
O
B
F
0
O
f
u
u
l
l
t
p
f
l
u
a
t
g
b
1
u
f
f
e
r
O
B
F
1
O
g
n
e
e
n
-
s
r
h
a
o
t
i
t
g
p
u
c
l
i
s
r
e
c
e
n
u
i
t
O
g
n
e
e
n
-
s
r
h
a
o
t
i
t
g
p
u
c
l
i
s
r
e
c
e
n
u
i
t
O
r
e
u
q
t
u
p
u
e
t
t
b
u
s
f
g
f
e
n
r
a
e
l
m
p
t
y
E
i
n
t
e
r
r
u
p
t
s
i
O
B
In
t
e
r
r
u
p
t
r
e
q
u
e
s
t
i
s
s
e
t
a
t
t
h
i
s
r
i
s
i
n
g
e
d
g
e
In
t
e
r
r
u
p
t
r
e
q
u
e
s
t
i
s
s
e
t
a
t
t
h
i
s
r
i
s
i
n
g
e
d
g
e
IB
F
0
IB
F
1
IB
F
O
(
O
B
B
F
0
E
0
)
O
(
O
B
B
F
1
E
1
)
O
B
E
O
B
E
0
O
B
E
1
R
d
i
s
t
i
e
n
c
g
t
i
e
o
d
n
g
c
e
i
c
e
r
u
i
t
R
d
i
s
t
i
e
n
c
g
t
i
e
o
d
n
g
c
e
i
c
e
r
u
i
t
R
d
i
s
t
i
e
n
c
g
t
i
e
o
d
n
g
c
e
i
c
e
r
u
i
t
相關(guān)PDF資料
PDF描述
M38869FFAHP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38869M8A-XXXGP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38869M8A-XXXHP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38869M8A-012HP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38B40EDH-XXXXFP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M38867M8A-XXXHP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38867M8-XXXHP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38867M9-XXXHP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38867MA-XXXHP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38867MB-XXXHP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*