R8CSLASH15 datasheet(225/277 Pages) RENESAS

225 / 277 page

R8C/14 Group, R8C/15 Group

18. Flash Memory Version

Rev.2.10

Jan 19, 2006

Page 213 of 253

REJ09B0164-0210

Table 18.8

Pin Functions (Flash Memory Standard Serial I/O Mode 3)

Name

I/O

Description

VCC,VSS

Power input

Apply the voltage guaranteed for program and erase to

VCC pin and 0V to VSS pin.

RESET

Reset input

Reset input pin.

P4_6/XIN

P4_6 input/clock input

Connect ceramic resonator or crystal oscillator

between XIN and XOUT pins when connecting external

oscillator. Apply “H” and “L” or leave the pin open when

using as input port

P4_7/XOUT

P4_7 input/clock output

I/O

AVCC, AVSS

Analog power supply input I

Connect AVSS to VSS and AVCC to VCC, respectively.

VREF

Reference voltage input

Reference voltage input pin to A/D converter.

P1_0 to P1_7

Input port P1

Input “H” or “L” level signal or leave the pin open.

P3_3 to P3_5,

P3_7

Input port P3

Input “H” or “L” level signal or leave the pin open.

P4_5

Input port P4

Input “H” or “L” level signal or leave the pin open.

MODE

I/O Serial data I/O pin. Connect to the flash programmer.

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