NEC PC-8201 Service Manual page 124

Write cycle
CLK
I
T1
I
12
I
T W A I T
I
T3
I
TI
Y
pen-'
DATA
OUT
x
READY
Note:
READY must stay unchanged throughout set-up and hold times.
Hold cycle
CLK
HLDA
Interrupt and hold cycle
HLDA
': Dur~ng thls time lapse,
IOIM
is float~ng
XPX-E- 16