IBM PPC440X5 CPU Core User Manual page 463

Preliminary
Timer Clock Select
0 CPU timer advances by one at each rising edge
24 TCS
1 CPU timer advances by one for each rising edge
25:31 Reserved
regsumm440core.fm.
September 12, 2002
of the CPU input clock (CPMC440CLOCK).
of the CPU timer clock
(CPMC440TIMERCLOCK).
Core Configuration Register 1
PPC440x5 CPU Core User's Manual
When TCS = 1, CPU timer clock input can toggle
at up to half of the CPU clock frequency.
CCR1 (cont.)
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