M16C26A Datasheet, PDF (32/352 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES

M16C/26A Group (M16C/26A, M16C/26B, M16C/26T)
1. Overview
1.6 Pin Description
Table 1.13 Pin Description (48-Pin and 42-Pin Packages)
Classification Pin Name I/O Type
Description
Power Supply VCC, VSS
I
Apply 0V to the Vss pin. Apply following voltage to the Vcc pin.
2.7 to 5.5 V (M16C/26A, M16C/26B), 3.0 to 5.5 V (M16C/26T T-ver.), 4.2
to 5.5 V (M16C/26T V-ver.)
Analog Power
Supply
Reset Input
CNVSS
Main Clock
Input
AVCC
AVSS
____________
RESET
CNVSS
XIN
I
Supplies power to the A/D converter. Connect the AVCC pin to VCC and
the AVSS pin to VSS
___________
I
The MCU is in a reset state when "L" is applied to the RESET pin
I
Connect the CNVSS pin to VSS
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
I
I/O pins for the sub clock oscillation circuit. Connect a crystal oscillator
Sub Clock Output XCOUT
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
NMI interrupt input pin. 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 direction
_____
_____
Key Input Interrupt KI0 to KI3
Timer A
TA0OUT to
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
Timer B
TA4IN
ZP
TB0IN to
I
Input pin for Z-phase
I
Timer B0 to B1 input pins
Three-Phase
Motor Control
TB1IN
___
___
U, U, V, V,
___
W, W
O Output pins for the three-phase motor control timer
Timer Output IDU, IDW,
I/O I/O pins for the three-phase motor control timer
_____
IDV, SD
Serial I/O
_________ _________
CTS1 to CTS2
I
Input pins to control data transmission
_________ _________
RTS1 to RTS2
O
Output pins to control data reception
CLK1 to CLK2 I/O Inputs and outputs the transfer clock
RxD1 to RxD2
I
Inputs serial data
TxD1 to TxD2
O
Outputs serial data
Reference
CLKS1
VREF
O Output pin for transfer clock
I
Applies reference voltage to the A/D converter
Voltage Input
A/D Converter AN0 to AN7
I
Analog input pins for the A/D converter
I/O Ports
AN30 to AN31
___________
ADTRG
I
Input pin for an external A/D trigger
P15 to P17
I/O I/O ports for CMOS. Each port can be programmed for input or output
under the control of the direction register. An input port can be set, by
program, for a pull-up resistor available or for no pull-up resister available
in 3-bit units
P64 to P67
P70 to P77
P80 to P87
I/O CMOS I/O ports which have a direction register determines an individual
pin used as an input port or an output port. A pull-up resistor is selectable
for every 4 input ports
P100 to P107
P90 to P91
I : Input O : Output I/O : Input and output
Rev. 2.00 Feb.15, 2007 page 15 of 329
REJ09B0202-0200