M16CSLASH26 datasheet(232/239 Pages) RENESAS

부품명	M16C/26

상세설명	16-BIT CMOS SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/20 SERIES

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Appendix Standard Serial I/O Mode 2 (Flash Memory Version)

226

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.

Download Command

This command downloads a program to the RAM for execution. Execute the download command as

explained here following.

(1) Transfer the “FA16” command code with the 1st byte.

(2) Transfer the program size with the 2nd and 3rd bytes.

(3) Transfer the check sum with the 4th byte. The check sum is added to all data sent with the 5th

byte onward.

(4) The program to execute is sent with the 5th byte onward.

When all data has been transmitted, if the check sum matches, the downloaded program is executed.

The size of the program will vary according to the internal RAM.

Figure 1.23.8. Timing for download

FA16

Program

data

Program

data

Data size (high)

Data size (low)

Check

sum

RxD1

TxD1

(M16C reception data)

(M16C transmit data)

M16C/26 데이터시트(PDF) 232 Page - Renesas Technology Corp