Datasheet

Section 8 I/O Ports
Rev.7.00 Feb. 14, 2007 page 293 of 1108
REJ09B0089-0700
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.
PG4/CS0
PG3/CS1/CS7
PG2/CS2
PG1/CS3/IRQ7 /CS6
PG0/ADTRG/IRQ6
PG4
PG3
PG2
PG1
PG0
Note:
*
Modes 6 and 7 are not available in the ROMless versions.
(I/O)
(I/O)
(I/O)
(I/O)/IRQ7 (input)
(I/O)/
Port G pins
Pin functions in mode 7
*
Pin functions in modes 4 to 6
*
PG4
PG3
PG2
PG1
PG0
(I/O)/
(I/O)/
(I/O)/
(I/O)/
(I/O)/
CS0
CS1
CS2
CS3
(output)
(output)/
(output)
(output)/IRQ7 (input)/
CS7 (output)
CS6 (output)
Port G
ADTRG (input)/IRQ6
(input) ADTRG (input)/IRQ6 (input)
Figure 8.24 Port G Pin Functions