Port G; Overview - Renesas H8S/2319 series Hardware Manual

8.12

Port G

8.12.1

Overview

Port G is a 5-bit I/O port. Port G pins also function as bus control signal output pins (CS0 to CS3,
CS6, CS7). The A/D converter input pin (ADTRG), and interrupt input pins (IRQ6, IRQ7). The
interrupt input pins (IRQ6, IRQ7) are Schmitt-triggered inputs.
Figure 8-24 shows the port G pin configuration.
Port G
Pin functions in modes 4 to 6 *
CS0
PG4 (I/O)/ (output)
CS1
PG3 (I/O)/ (output)/
CS2
PG2 (I/O)/ (output)
CS3 (output)/ IRQ7 (input)/
PG1 (I/O)/
ADTRG (input)/IRQ6 (input)
PG0 (I/O)/
Note: * Modes 6 and 7 are not available in the ROMless versions.
Port G pins
PG4/CS0
PG3/CS1/ CS7
PG2/CS2
PG1/CS3/IRQ7 /CS6
PG0/ADTRG/IRQ6
CS7 (output)
CS6 (output)
Figure 8-24 Port G Pin Functions
Pin functions in mode 7 *
PG4 (I/O)
PG3 (I/O)
PG2 (I/O)
(I/O)/ IRQ7 (input)
PG1
ADTRG (input)/IRQ6 (input)
PG0 (I/O)/
Rev. 5.00, 12/03, page 287 of 1088