1. Overview
M32C/84 Group (M32C/84, M32C/84T)
Table 1.6 Pin Description (100-Pin and 144-Pin Packages) (Continued)
Supply
Voltage
VCC1
Classsfication
Symbol
I/O Type
I
Function
I/O pins for the main clock oscillation circuit. Connect a ceramic
resonator or crystal oscillator between XIN and XOUT. To apply
external clock, apply it to XIN and leave XOUT open
Main Clock Input XIN
Main Clock Output XOUT
Sub Clock Input XCIN
O
I
VCC1
VCC1
VCC1
I/O pins for the sub clock oscillation circuit. Connect a crystal
oscillator between XCIN and XCOUT. To apply external clock,
apply it to XCIN and leave XCOUT open
Sub Clock Output XCOUT
(1)
O
BCLK Output
BCLK
O
VCC2 Outputs BCLK signal
Clock Output
CLKOUT
O
VCC2 Outputs the clock having the same frequency as fC, f8 or f32
VCC1 Input pins for the _I_N__T__ interrupt
VCC2
______
________
INT Interrupt
INT0 to _I_N__T__2__
I
________
Input
INT3 to _I_N__T__5__
I
_______
_______
NMI Interrupt Input NMI
I
I
VCC1 Input pin for the _N__M___I_ interrupt
VCC1 Input pins for the key input interrupt
VCC1 I/O pins for the timer A0 to A4
(TA0OUT is a pin for the N-channel open drain output.)
VCC1 Input pins for the timer A0 to A4
_____
_____
Key Input Interrupt KI0 to KI3
Timer A
Timer B
TA0OUT to
TA4OUT
TA0IN to
TA4IN
I/O
I
I
TB0IN to
TB5IN
VCC1 Input pins for the timer B0 to B5
Three-phase Motor U, _U__, V, _V__,
O
VCC1 Output pins for the three-phase motor control timer
___
Control Timer Output W, W
_________
________
Serial I/O
CTS0 to CTS4
I
O
I/O
I
VCC1 Iutput pins for data transmission control
VCC1 Output pins for data reception control
VCC1 Inputs and outputs the transfer clock
VCC1 Inputs serial data
_________
________
RTS0 to RTS4
CLK0 to CLK4
RxD0 to RxD4
TxD0 to TxD4
O
VCC1 Outputs serial data
(TxD2 is a pin for the N-channel open drain output.)
VCC1 Inputs and outputs serial data
I2C Mode
Serial I/O
SDA0 to
SDA4
I/O
I/O
O
I
(SDA2 is a pin for the N-channel open drain output.)
VCC1 Inputs and outputs the transfer clock
(SCL2 is a pin for the N-channel open drain output.)
VCC1 Outputs serial data when slave mode is selected
(STxD2 is a pin for the N-channel open drain output.)
VCC1 Inputs serial data when slave mode is selected
SCL0 to
SCL4
STxD0 to
Special Function STxD4
SRxD0 to
SRxD4
SS0 to _S__S__4__
I
VCC1 Input pins to control serial I/O special function
_______
I : Input
O : Output
I/O : Input and output
NOTES:
1. Bus control pins in M32C/84T cannot be used.
Page 16
Rev. 1.21 Jul. 08, 2005
of 85
RENESAS [ RENESAS TECHNOLOGY CORP ]
