W65C22S Datasheet, PDF (42/46 Pages) List of Unclassifed Manufacturers – Versatile Interface Adapter (VIA)

The Western Design Center, Inc.
W65C22S Data Sheet
PA, PB
PERIPHERAL INPUT DATA
CA1, CB1
INPUT LATCHING CONTROL
T1L
tPDH
tAL
ACTIVE
TRANSITION
Figure 3-8 Peripheral Data, Input Latching Timing
PHI2
CB2
SHIFT DATA (OUT0PUT)
CB1 SHIFT CLOCK
(INPUT OR OUTPUT)
tSR1
DELAY TIME MEASURED FROM THE FIRST PHI2
FALLING EDGE AFTER CB1 FALLING EDGE
Figure 3-9 Data Shift Out, Internal or External Shift Clock Timing
PHI2
CB2
SHIFT DATA (INPUT)
CB1 SHIFT CLOCK
(iNPUT OR OUTPUT)
tSR2
tSR3
SETUP TIME MEASURED FROM THE FIRST
PHI12 RISING EDGE AFTER CB1 RISING EDGE
Figure 3-10 Data Shift In, Internal or External Shift Clock Timing
The Western Design Center
W65C22S
42