Baseband Processor For Mixed Mode Land Mobile Radio
CMX880
Fast Serial Bus Timing
Figure 24 Fast Serial Bus Timings.
Fast Serial Bus Interface Timing
Notes
Min.
Typ.
Max.
Units
tCK
tCL
tCH
tDOV
tDOH
tDS
Clock cycle time
1
260
ns
ns
ns
ns
ns
ns
ns
Clock 'low' pulse width
Clock 'high' pulse width
Out data valid time
Out data hold time
In data set up time
In data hold time
100
100
50
0
50
0
tDH
Maximum 30pF load on each FSB interface line.
Notes:
1.
The FSB clock frequency is a quarter of the CLOCK/XTAL frequency.
ã 2001 Consumer Microcircuits Limited
77
D/880/1