
CHAPTER 4 PORT FUNCTIONS
User’s Manual U15905EJ2V1UD
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Figure 4-26. Block Diagram of PCM1 and PCM2
Internal
bus
WRPMC
RD
Address
CLKOUT, HLDAK output
WRPORT
PCM1/CLKOUT,
PCM2/HLDAK
PMCCMn
Output latch
(PCMn)
PCM
Selector
WRPM
PMCMn
PMCCM
PMCM
Remarks 1. PCM:
Port register CM
PMCM:
Port mode register CM
PMCCM: Port mode control register CM
2. n = 1 or 2