UPD70F3208 Datasheet, PDF (244/757 Pages) NEC – 32-Bit Single-Chip Microcontrollers

CHAPTER 4 PORT FUNCTIONS
(3) Block diagram (port CT)
Figure 4-37. Block Diagram of PCT0, PCT1, PCT4, and PCT6
WRPMC
PMCCT
PMCCTn
WRPM ^{Output buffer OFF signal}
PMCT
PMCTn
WRPORT
WR0, WR1, RD,
ASTB output
Output latch
(PCTn)
PCT0/WR0,
PCT1/WR1,
PCT4/RD,
PCT6/ASTB
Address
RD
Remarks 1. PMCT: Port CT mode register
PMCCT: Port CT mode control register
RD: Port CT read signal
WR: Port CT write signal
2. n = 0, 1, 4, 6
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User’s Manual U15862EJ3V0UD