HD64F3039F18 Datasheet, PDF (179/710 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8 Family / H8/300H Series

Section 7 I/O Ports
7.5.3 Pin Functions in Each Mode
The pin functions differ between mode 1, 3 (expanded modes with on-chip ROM disabled), mode
5 (expanded modes with on-chip ROM enabled), mode 6, and 7 (single-chip mode). The pin
functions in each mode are described below.
Modes 1 and 3
Address output can be selected for each pin in port 5. Figure 7.13 shows the pin functions in
modes 1 and 3.
Port 5
A ₁₉ (output)
A ₁₈ (output)
A ₁₇ (output)
A ₁₆ (output)
Figure 7.13 Pin Functions in Modes 1 and 3 (Port 5)
Mode 5
Address output or generic input can be selected for each pin in port 5. A pin becomes an address
output pin if the corresponding P5DDR 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 P5DDR must be
set to 1. Figure 7.14 shows the pin functions in mode 5.
Port 5
When P5DDR = 1 When P5DDR = 0
A ₁₉ (output)
A ₁₈ (output)
A ₁₇ (output)
A ₁₆ (output)
P5 ₃ (input)
P5 ₂ (input)
P5 ₁ (input)
P5 ₀ (input)
Figure 7.14 Pin Functions in Mode 5 (Port 5)
Rev.3.00 Mar. 26, 2007 Page 155 of 682
REJ09B0353-0300