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4-4
PmPPC440: Real-Time Clock
April 2005
Calibration
Calibration bits. The calibration circuit adds or subtracts counts from the
oscillator divider circuit at the divide by 256 stage. The number of times
pulses are blanked (subtracted, negative calibration) or split (added, posi-
tive calibration) depends on this five-bit byte. Adding counts accelerates
the clock, and subtracting counts slows the clock down.
X
Don’t care bit.
Содержание PmPPC440
Страница 1: ...PmPPC440 PowerPC Based Processor PMC Module User s Manual April 2005 ...
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Страница 24: ...2 4 PmPPC440 Setup April 2005 Figure 2 3 Component Map Bottom Rev 02 P1 DMC Connector U19 MSC PLD ...
Страница 34: ...2 14 PmPPC440 Setup April 2005 ...
Страница 42: ...3 8 PmPPC440 PPC440GP Processor April 2005 ...
Страница 56: ...6 4 PmPPC440 Ethernet Interface April 2005 ...
Страница 96: ...8 26 PmPPC440 Monitor April 2005 ...