
CHAPTER 4 PORT FUNCTIONS
User’s Manual U15905EJ2V1UD
156
Figure 4-29. Block Diagram of PCS4 to PCS7
Internal
bus
WRPM
RD
Address
WRPORT
PCS4 to PCS7
PMCSn
Output latch
(PCSn)
PMCS
PCS
Selector
Remarks 1. PCS:
Port register CS
PMCS: Port mode register CS
2. n = 4 to 7