M16CSLASH26 datasheet(210/239 Pages) RENESAS

210 / 239 page

Renesas Technology Corp.

Appendix Standard Serial I/O Mode (Flash Memory Version)

204

M16C/26 Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Under

development

Preliminary Specifications Rev. 0.9

Specifications in this manual are tentative and subject to change.

Description

VCC,VSS

Apply program/erase protection voltage to Vcc pin and 0 V to Vss pin.

CNVSS

Connect to Vcc pin.

RESET

Reset input pin. While reset is "L" level, a 20 cycle or longer clock

must be input to XIN pin.

XIN

Connect a ceramic resonator or crystal oscillator between XIN and

XOUT pins. To input an externally generated clock, input it to XIN pin

and open XOUT pin.

XOUT

AVCC, AVSS

VREF

Connect AVss to Vss and AVcc to Vcc, respectively

Enter the reference voltage for AD from this pin.

P10 to P17

Input "H" or "L" level signal or open

P86

Input "H" level signal.

P60 to P63

Input "H" or "L" level signal or open.

P64

Standard serial I/O mode 1: BUSY signal output pin

Standard serial I/O mode 2: Monitors the boot program operation

check signal output pin.

P65

P66

Serial data input pin

P67

Serial data output pin

Input "H" or "L" level signal or open.

P80 to P83,

P86, P87

Input "H" or "L" level signal or open.

Name

Power input

CNVSS

Reset input

Clock input

Clock output

Analog power supply input

Reference voltage input

Input port P1

CE input

Input port P6

BUSY output

SCLK input

RxD input

TxD output

Input port P7

Input port P8

Input port P9

Input port P10

I/O

Standard serial I/O mode 1: Serial clock input pin

Standard serial I/O mode 2: Input "L".

P90 to P97

P100 to P107

IVCC

Power supply

This pin must be left unconnected.

P70 to P77

Appendix Standard Serial I/O Mode (Flash Memory Version)

Table 1.22.1. Pin functions (Flash memory standard serial I/O mode)

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