HD64F2357VF13 Datasheet, PDF (362/1049 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

9.14 Port G
9.14.1 Overview
Port G is a 5-bit I/O port. Port G pins also function as bus control signal output pins (CS0 to CS3, and CAS).
Figure 9-26 shows the port G pin configuration.
Port G
Port G pins
PG₄/ CS0
PG₃/ CS1
PG₂/ CS2
PG₁/ CS3
PG₀/ CAS
Pin functions in mode 7*
PG₄ (I/O)
PG₃ (I/O)
PG₂ (I/O)
PG₁ (I/O)
PG₀ (I/O)
Pin functions in modes 4 to 6*
PG₄ (input)/CS0 (output)
PG₃ (input)/CS1 (output)
PG₂ (input)/CS2 (output)
PG₁ (input)/CS3 (output)
PG₀ (I/O)/CAS (output)
Note: * Modes 6 and 7 are provided in the on-chip ROM version only.
Figure 9-26 Port G Pin Functions
9.14.2 Register Configuration
Table 9-25 shows the port G register configuration.
Table 9-25 Port G Registers
Name
Abbreviation
Port G data direction register
PGDDR
Port G data register
PGDR
Port G register
PORTG
Notes: 1. Lower 16 bits of the address.
2. Value of bits 4 to 0.
3. Initial value depends on the mode.
R/W
W
R/W
R
Initial Value*²
H'10/H'00*³
H'00
Undefined
Address*¹
H'FEBF
H'FF6F
H'FF5F
Rev.6.00 Oct.28.2004 page 332 of 1016
REJ09B0138-0600H