HD64F3039F18 Datasheet, PDF (169/710 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8 Family / H8/300H Series

Section 7 I/O Ports
7.3.3 Pin Functions in Each Mode
The pin functions of port 2 differ between mode 1, 3 (expanded mode with on-chip ROM
disabled), mode 5 (expanded mode with on-chip ROM enabled), mode 6, and 7 (single-chip
mode). The pin functions in each mode are described followings.
Modes 1 and 3
Address output can be selected for each pin in port 2. Figure 7.6 shows the pin functions in modes
1 and 3.
Port 2
A₁₅ (output)
A₁₄ (output)
A₁₃ (output)
A₁₂ (output)
A₁₁ (output)
A₁₀ (output)
A₉ (output)
A₈ (output)
Figure 7.6 Pin Functions in Modes 1 and 3 (Port 2)
Mode 5
Address output or generic input can be selected for each pin in port 2. A pin becomes an address
output pin if the corresponding P2DDR bit is set to 1, and a generic input pin if this bit is cleared
to 0. Following a reset, all pins are input pins. To use a pin for address output, its P2DDR bit must
be set to 1. Figure 7.7 shows the pin functions in modes 5.
Rev.3.00 Mar. 26, 2007 Page 145 of 682
REJ09B0353-0300