データシート検索エンジンとフリーデータシート
部品番号
コンポーネント説明
MSM80C85AHGS-2K データシートの表示(PDF) - Oki Electric Industry
部品番号
コンポーネント説明
一致するリスト
MSM80C85AHGS-2K
8-Bit CMOS MICROPROCESSOR
Oki Electric Industry
MSM80C85AHGS-2K Datasheet PDF : 29 Pages
1
2
3
4
5
6
7
8
9
10
Next
Last
¡ Semiconductor
MSM80C85AHRS/GS/JS
Table 3 MSM80C85AH Machine State Chart
Machine State
T
1
T
2
T
WAIT
T
3
T
4
T
5
T
6
T
RESET
T
HALT
T
HOLD
S
1
, S
0
¥
¥
¥
¥
1
1
1
¥
0
¥
Status & Buses
IO/
M
A
8
– A
15
¥
¥
¥
¥
¥
¥
¥
¥
0
(2)
¥
0
(2)
¥
0
(2)
¥
TS
TS
TS
TS
TS
TS
AD
0
– AD
7
¥
¥
¥
¥
TS
TS
TS
TS
TS
TS
RD
,
WR
1
¥
¥
¥
1
1
1
TS
TS
TS
0 = Logic "0"
1 = Logic "1"
TS = High Impedance
¥
= Unspecified
Notes:
(1) ALE not generated during 2nd and 3rd machine cycles of DAD instruction.
(2) IO/
M
= 1 during T
4
- T
6
of INA machine cycle.
Control
INTA
1
¥
¥
¥
1
1
1
1
1
1
ALE
1
(1)
0
0
0
0
0
0
0
0
0
CLK
A
8-15
AD
0-7
ALE
RD
WR
IO/
M
STATUS
M
1
T
1
T
2
T
3
T
4
PC
H
(High Order Address)
PC
L
(Low Order
Address)
Data from Memory
(Instruction)
S
1
S
0
(Fetch)
M
2
M
3
T
1
T
2
T
3
T
1
T
2
T
3
T
(PC+1)
H
(PC+1)
L1
Data from Memory
(I/O Port Address)
IO Port
IO Port
Data to Memory
or Peripheral
10 (Read)
01 Write
11
Figure 5 MSM80C85AH Basic System Timing
10/29
Share Link:
datasheetbank.com [
Privacy Policy
]
[
Request Datasheet
] [
Contact Us
]