LSI Logic Confidential
AC Timing
18-5
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
18.2.1 Miscellaneous Timing
and
show miscellaneous AC timing
parameters.
Figure 18.1 Timing Diagram for CLKI and CLKO
The DMN-8600 has eight general-purpose I/O pins, four of which can be
used to interrupt the SPARC. They can be configured to be edge or level
sensitive and must be asserted for at least two clock cycles, as shown
in
Table 18.4
Miscellaneous Timing Values
Sym
bol
Description
Timing Value
(13.5 MHz Crystal)
Unit
Timing Value
(27 MHz Crystal)
Unit
Min
Max
Min
Max
T
CYC
CLKI cycle time
74.07
–
ns
37.04
ns
T
HIGH
CLKI high time
33
–
ns
16.5
ns
T
LOW
CLKI low time
33
–
ns
16.5
ns
T3
1
CLKO output delay with
respect to CLKI
3
20
ns
3
20
ns
T
GPW
GPIO input pulse width
2
–
cycles
2
cycles
1. T3 minimum delay is @ load = 0 pF. T3 maximum delay is @ load = 50 pF.
CLKO
T
3
70%
50%
30%
CLKI
T
HIGH
T
CYC
T
LOW
T
3
Содержание DMN-8600
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