85
ø
Ports 1 to 7
(read)
T
2
T
1
t
PWD
t
PRH
t
PRS
Ports 1 to 6
(write)
Figure 22.14 I/O Port Input/Output Timing
ø
t
FTIS
t
FTOD
FTOA, FTOB
FTIA, FTIB,
FTIC, FTID
Figure 22.15 FRT Input/Output Timing
ø
t
FTCS
FTCI
t
FTCWH
t
FTCWL
Figure 22.16 FRT Clock Input Timing
