w65c21 Western Design Center, Inc., w65c21 Datasheet - Page 10

• Manufacturer Part Number: w65c21
• Description: W65c21n And W65c21s Peripheral Interface Adapter Pia
• Manufacturer: Western Design Center, Inc.

(HANDSHAKE)
RS0, RS1, CSO,
(PULSE OUT)
CS1, CS2B
DATA IN
PA0-PA7
PB0-PB7
D0-D7
PHI2
CA2
CA2
CA1
t
ACR
t
rc
t
CDR
IRQAB, IRQBB
t
IRQAB, IRQBB
PCR
CA1,CA2
CB1,CB2
Figure 6 Write Timing Waveforms
t
C
PHI2
Figure 8 Interrupt Clear Timing
t
HR
t
Figure 7 Interrupt Timing
DCR
t
CYC
t
CA2
t
f
c
t
CAR
P
WI
t
t
RS3
IR
t
RS1
t
r
t
f
t
RS2
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