HD6473887 Datasheet, PDF (149/523 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer

8.2 Port 1
8.2.1 Overview
Port 1 is an 8-bit I/O port. Figure 8-1 shows its pin configuration.
Port 1
P1 ₇ /IRQ ₃ /TMIF
P1 ₆ /IRQ ₂
P1 ₅ /IRQ ₁ /TMIC
P1₄/IRQ₄ /ADTRG
P1 ₃ /TMIG
P1 ₂ /TMOFH
P1 ₁ /TMOFL
P1 ₀ /TMOW
Figure 8-1 Port 1 Pin Configuration
8.2.2 Register Configuration and Description
Table 8-2 shows the port 1 register configuration.
Table 8-2 Port 1 Registers
Name
Abbrev.
R/W
Port data register 1
PDR1
R/W
Port control register 1
PCR1
W
Port pull-up control register 1
PUCR1
R/W
Port mode register 1
PMR1
R/W
Initial Value
H'00
H'00
H'00
H'00
Address
H'FFD4
H'FFE4
H'FFE0
H'FFC8
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