參數(shù)資料
型號(hào)： M38869MFA
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(yè)數(shù)： 39/110頁(yè)
文件大?。?/td> 1601K
代理商： M38869MFA
39
3886 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
P4
7
/SRDY
1
/S
1
P5
0
/A
0
P5
1
/INT
20
/S
0
P5
2
/INT
30
/R
P5
3
/INT
40
/W
P4
2
/INT
0
/OBF
00
P4
3
/INT
1
/OBF
01
P4
6
/S
CLK1
/OBF
10
Table 8 Function description of control I/O pins at bus interface function selected
Pin
Name
OBF
00
output
enable bit
OBF
01
output
enable bit
OBF
10
output
enable bit
Input
/Output
Functions
S
1
A
0
S
0
R
W
OBF00
OBF01
OBF10
Chip select input
This is used for selecting the data bus buffer and is
selected at “L” level.
Address input
This is used for selecting DBBSTS and DBBOUT
when the host CPU is read.
This is used for distinguishing command from data
when writing to the host CPU.
Chip select input
This is used for selecting the data bus buffer and is
selected at “L” level.
This is a timing signal for reading data from the
data bus buffer to the host CPU.
This is a timing signal for writing data to the data
bus buffer by the host CPU.
Status output signal
OBF
00
signal is output.
Status output signal
OBF
01
signal is output.
Status output signal
OBF
10
signal is output.
–
–
–
–
–
1
0
0
–
–
–
–
–
0
1
0
–
–
–
–
–
0
0
1
Input
Input
Input
Input
Output
Output
Output
Output
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