Datasheet

Section 8 I/O Ports
Rev.7.00 Feb. 14, 2007 page 221 of 1108
REJ09B0089-0700
Port Description Pins
Mode
4
Mode
5
Mode
6
*
1
Mode
7
*
1
Port G PG4/CS0 When DDR = 0
*
2
: input port
When DDR = 1
*
3
: CS0 output
• 5-bit I/O port
• Schmitt-
triggered input
(IRQ7, IRQ6)
PG3/CS1/CS7 I/O port
When DDR = 1, CS167E = 1, and CSS17
= 0: Also functions as CS1 output
When DDR = 1, CS167E = 1, and CSS17
= 1: Also functions as CS7 output
PG2/CS2 I/O port
When DDR = 1 and CS25E = 1: Also
functions as CS2 output
I/O port also
functions as
interrupt
input pins
(IRQ7, IRQ6)
and A/D
converter
input pin
(ADTRG)
PG1/CS3/IRQ7/CS6 I/O port
When DDR = 1, CS25E = 1, and CSS36 =
0: Also functions as CS3 output
When DDR = 1, CSS36 = 1, and CS167E
= 1: Also functions as CS6 output and
interrupt input pin (IRQ7)
PG0/IRQ6/ADTRG I/O port also functioning as interrupt input
pin (IRQ6) and A/D converter input pin
(ADTRG)
Notes: 1. Modes 6 and 7 are not available in the ROMless versions.
2. After a reset in mode 6
3. After a reset in mode 4 or 5