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Section 1 Overview
Rev. 4.00 Sep. 14, 2005 Page 18 of 828
REJ09B0023-0400
Table 1.3 lists the pin functions.
Table 1.3 Pin Functions
Classification Symbol I/O Name Function
Vcc I Power supply Power supply for the internal LSI.
Connect all Vcc pins to the system.
There will be no operation if any pins
are open.
Vss I Ground Ground pin. Connect all Vss pins to
the system power supply (0V). There
will be no operation if any pins are
open.
VccQ I Power supply Power supply for I/O pins. Connect
all VccQ pins to the system power
supply. There will be no operation if
any pins are open.
Power supply
VssQ I Ground Ground pin. Connect all VssQ pins to
the system power supply (0V). There
will be no operation if any pins are
open.
Vcc (PLL1) I PLL1 power
supply
Power supply for the on-chip PLL1
oscillator
Vss (PLL1) I PLL1 ground Ground pin for the on-chip PLL1
oscillator
Vcc (PLL2) I PLL2 power
supply
Power supply for the on-chip PLL2
oscillator
Vcc (PLL2) I PLL2 ground Ground pin for the on-chip PLL2
oscillator
EXTAL I External clock Connected to a crystal resonator.
An external clock signal may also be
input to the EXTAL pin. For
examples of the connection of crystal
resonator or an external clock signal,
see section 4, Clock Pulse
Generator (CPG).
Clock
XTAL O Crystal Connected to a crystal resonator.
For examples of the connection of
crystal resonator or an external clock
signal, see section 4, Clock Pulse
Generator (CPG).