M16C29 Datasheet, PDF (42/499 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M16C/Tiny SERIES

M16C/29 Group
1. Overview
1.5 Pin Description
Table 1.14 Pin Description (64-pin and 80-pin packages)
Classification Symbol I/O Type
Function
Power supply VCC, VSS
I
Apply 0V to the Vss pin. Apply following voltage to the Vcc pin.
2.7 to 5.5 V (Normal), 3.0 to 5.5 V (T-ver.), 4.2 to 5.5 V (V-ver.)
Analog power AVCC
I
Supplies power to the A/D converter. Connect the AVCC pin to VCC and
supply
Reset input
AVSS
____________
RESET
the AVSS pin to VSS
___________
I
The microcomputer is in a reset state when "L" is applied to the RESET pin
CNVSS
CNVSS
I
Connect the CNVSS pin to VSS
Main clock
XIN
input
I
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
Main clock
output
XOUT
O
it to XIN and leave XOUT open. If XIN is not used (for external oscillator or
external clock) connect XIN pin to VCC and leave XOUT open
Sub clock input XCIN
Sub clock output XCOUT
I
I/O pins for the sub clock oscillation circuit. Connect a crystal oscillator
O
between XCIN and XCOUT
Clock output CLKOUT
O
Outputs the clock having the same frequency as f1, f8, f32, or fC
______
________
________
______
________
INT interrupt INT0 to INT5
I
Input pins for the INT interrupt. INT2 can be used for Timer A Z-phase
input
_______
NMI interrupt
input
_______
NMI
function
_______
_______
I
Input pin for the NMI interrupt. NMI cannot be used as I/O port while the three-
_______
phase motor control is enabled. Apply a stable "H" to NMI after setting it's
_____
_____
Key input interrupt KI0 to KI3
Timer A
TA0OUT to
direction register to "0" when the three-phase motor control is enabled
I
Input pins for the key input interrupt
I/O I/O pins for the timer A0 to A4
TA4OUT
TA0IN to
I
Input pins for the timer A0 to A4
TA4IN
ZP
I
Input pin for Z-phase
Timer B
TB0IN to
I
Input pins for the timer B0 to B2
Three-phase
motor control
TB2IN
___
___
U, U, V, V,
___
W, W
O
Output pins for the three-phase motor control timer
timer output IDU, IDW,
I/O Input and output pins for the three-phase motor control timer
_____
IDV, SD
_________ _________
Serial I/O
CTS0 to CTS2
I
Input pins for data transmission control
_________ _________
RTS0 to RTS2
O
Output pins for data reception control
CLK0 to CLK3 I/O Inputs and outputs the transfer clock
RxD0 to RxD2
I
Inputs serial data
SIN3
I
Inputs serial data
TxD0 to TxD2
O
Outputs serial data
SOUT3
O
Outputs serial data
CLKS1
I²C bus Mode SDA2
O
Output pin for transfer clock
I/O Inputs and outputs serial data
SCL2
Inputs and outputs the transfer clock
Multi-master
I²C bus
SDAMM
SCLMM
I/O Inputs and outputs serial data
Inputs and outputs the transfer clock
Reference
voltage input
VREF
I
Applies reference voltage to the A/D converter
A/D converter AN0 to AN7
I
Analog input pins for the A/D converter
AN00 to AN03
AN24
AN30 to AN32
___________
ADTRG
I
Input pin for an external A/D trigger
I: Input O: Output I/O: Input and output
Rev. 1.12 Mar.30, 2007
REJ09B0101-0112
page 18 _{of 458}