National CP3BT26 Computer Hardware User Manual


 
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CP3BT26
30.9 I/O PORT TIMING
Figure 115. I/O Port Timing
Table 86 I/O Port Signals
Symbol
Figure
Description Reference Min (ns) Max (ns)
I/O Port Input Signals
t
IS
115 Input Setup Time
Before Rising Edge (RE)
on System Clock
-
t
IH
115 Input Hold Time After RE on System Clock -
I/O Port Output Signals
t
COv1
115 Output Valid Time After RE on System Clock -
t
OF
115 Output Floating Time After RE on System Clock -
CLK
1
11222111222
PORTS B, C (input)
PORTS B, C (output)
t
IS
t
COv1
t
lH
t
COv1
t
OF
DS100