Motorola DSP56305 User Manual page 506

VITERBI CO-PROCESSOR
Performance Analysis
• Time required to perform one ACS butterfly (T
• Cycle time (T
• Flush time (T
– The flush time differs for equalization and decoding.
– In equalization, the time for generation of data at flush is:
This equation has not been verified, and may be inaccurate.
Note:
– In decoding, the time for BER calculation time at flush is:
• Time required for reading data out of the VCOP (T
13-36
T
acs
):
c
T = ----------------------------------------- -
c
Clock_Frequency
):
flush
(
T = 36
flush
T = 36
flush
(
T = Bits_Left_in_Buffer
readbuff
DSP56305 User's Manual
):
acs
×
= 4 T
c
1
) 16T ×
+ 8 = 704T
c c
×
16T = 576T
c c
readbuff
) ×
2T
):
c
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