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Part Name
Description
KK82C55 View Datasheet(PDF) - Kodenshi Auk Co., LTD
Part Name
Description
Manufacturer
KK82C55
CHMOS PROGRAMMABLE PERIPHERAL INTERFACE
Kodenshi Auk Co., LTD
KK82C55 Datasheet PDF : 22 Pages
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KK
82C55A
DATA FROM CPU
TO
KK
82C55AN
WR
OBF
INTR
t
WOB
ACK
STB
IBF
PERIPHERAL BUS
t
ST
t
SIB
t
PS
t
AOB
t
AK
t
AD
t
KD
RD
DATA FROM
PERIPHERAL TO
KK
82C55AN
t
PH
t
RIB
DATA FROM
KK
82C55AN TO
PERIPHERAL
DATA FROM
KK
82C55AN TO 8080
Figure 15. MODE 2 (Bidirectional)
NOTE:
Any sequence where
WR
occurs before
ACK
, and
STB
occurs before
RD
is permissible.
(
INTR
=
IBF
∗
MASK
∗
STB
∗
RD
+
OBF
∗
MASK
∗
ACK
∗
WR
)
15
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