7641 datasheet(114/385 Pages) RENESAS

114 / 385 page

Rev.2.00

Aug 28, 2006

page 97 of 113

7641 Group

REJ09B0336-0200

HARDWARE

FLASH MEMORY MODE

Software Commands (Standard Serial I/O

Mode)

Table 14 lists software commands. In standard serial I/O mode,

erase, program and read are controlled by transferring software

2nd byte

Address

(middle)

3rd byte

Address

(high)

4th byte

Data

output

5th byte

Data

output

6th byte

Data

output

.....

Data

output to

259th byte

Data input

to 259th

byte

FF16

When ID is

not verified

Not

acceptable

1st byte

transfer

Notes1: Shading indicates transfer from the internal flash memory microcomputer to a programmer. All other data is transferred from an external equipment

(programmer) to the internal flash memory microcomputer.

2: SRD refers to status register data. SRD1 refers to status register 1 data.

3: All commands can be accepted for the products of which boot ROM area is totally blank.

4: Address low is AB0 to AB7; Address middle is AB8 to AB15; Address high is AB16 to AB23.

commands via the SRXD pin. Software commands are explained

here below.

Table 14 Software commands (Standard serial I/O mode)

Page read

4116

Address

(middle)

Address

(high)

Data

input

Data

input

Data

input

Not

acceptable

Not

acceptable

Not

acceptable

2016

Address

(middle)

Address

(high)

D016

A716

D016

7016

SRD

output

SRD1

output

Acceptable

5016

Not

acceptable

F516

Address

(low)

Size

(low)

Address

(middle)

Size

(high)

Address

(high)

Check-

sum

ID size

ID1

To ID7

Acceptable

FA16

Data

input

required

number

of times

Not

acceptable

FB16

Version

data

output

Address

(middle)

Version

data

output

Address

(high)

Version

data

output

Data

output

Version

data

output

Data

output

Version

data

output

Data

output

Version

data output

to 9th byte

Data

output to

259th byte

Acceptable

Not

acceptable

FC16

Control command

Page program

Block erase

Erase all blocks

Read status register

Clear status register

ID code check

Download function

Version data output function

Boot ROM area output

function

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