HD6473032F Datasheet, PDF (168/572 Pages) Hitachi Semiconductor – Hitachi Microcomputer

7.10 Port A
7.10.1 Overview
Port A is an 8-bit input/output port that is also used for output (TP₇ to TP₀) from the programmable
timing pattern controller (TPC) and input and output (TIOCB₂, TIOCA₂, TIOCB₁, TIOCA₁,
TIOCB₀, TIOCA₀, TCLKD, TCLKC, TCLKB, TCLKA) by the 16-bit integrated timer unit (ITU),
Figure 7-19 shows the pin configuration of port A.
Pins in port A can drive one TTL load and a 30-pF capacitive load. They can also drive a darlington
transistor pair. Port A has Schmitt-trigger inputs.
Port A
Port A pins
PA ₇/TP₇ /TIOCB₂
PA ₆/TP₆ /TIOCA₂
PA ₅/TP₅ /TIOCB₁
PA ₄/TP₄ /TIOCA₁
PA ₃/TP₃ /TIOCB₀/TCLKD
PA ₂/TP₂ /TIOCA₀/TCLKC
PA ₁/TP₁ /TEND₁/TCLKB
PA ₀/TP₀ /TEND₀/TCLKA
Figure 7-19 Port A Pin Configuration
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