MIPS R4000 Microprocessor User's Manual 237
Clock Interface
In a system without phase lock, the transmission time for a signal from the
processor to an external agent composed of gate arrays can be calculated
from the following equation:
Transmission Time = (75 percent of TClock period) – (t
DO
for R4000)
+ (Minimum External Clock Buffer Delay)
– (External Sample Register Setup Time)
– (Maximum Clock Jitter for R4000 Internal Clocks)
– (Maximum Clock Jitter for RClock)
The transmission time for a signal from an external agent composed of gate
arrays to the processor in a system without phase lock can be calculated
from the following equation:
Transmission Time = (TClock period) – (t
DS
for R4000)
– (Maximum External Clock Buffer Delay)
– (Maximum External Output Register Clock-to-Q Delay)
– (Maximum Clock Jitter for TClock)
– (Maximum Clock Jitter for R4000 Internal Clocks)
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