Filter
Top Products
SILICON GATE MOS
8255
CONTROL WORD
Mode 2 Control Word
OBF
A
pC
200
ACK
A
1 = INPUT
0=
OUTPUT
PORTB
r--l
1 = INPUT
IN;E
I
PC
4
.
STB
A
0=
OUTPUT
L
__
J
PC
s
IBF
A
WR
GROUP B MODE
0=
MODE 0
1
=MODE 1
3
AD
PC
200
.
I
/
•
I/O
Mode 2
INTR
\'----"
1
IBF
DATA
BUS
(BETWEEN
I/O
CHIP - - - - - - - -
AND
I/O
DEVICE)
DATA
I/ODEVICE
-+-
I/O
CHIP
Mode 2 (Bi-directional) Timing
5-124
DATA
I/O
CHIP
-+
I/O
DEVICE