msm82c55a-2rs Oki Semiconductor, msm82c55a-2rs Datasheet - Page 6

• Manufacturer Part Number: msm82c55a-2rs
• Description: Cmos Programmable Peripheral Interface
• Manufacturer: Oki Semiconductor

¡ Semiconductor
TIMING DIAGRAM
Basic Input Operation (Mode 0)
Basic Output Operation (Mode 0)
Strobe Input Operation (Mode 1)
Port Output
Port Input
CS, A
Port Input
CS, A
D
D
INTR
7
7
STB
1
IBF
1
RD
- D
, A
- D
WR
, A
RD
0
0
0
0
t
AW
t
PS
t
SIB
t
AR
t
ST
t
IR
t
SIT
t
PH
t
RD
t
t
WW
RR
t
DW
t
RIT
t
t
WD
HR
t
t
RA
WB
MSM82C55A-2RS/GS/VJS
t
DF
t
WA
t
RIB
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