M38K09RFS datasheet(114/328 Pages) RENESAS

114 / 328 page

FUNCTIONAL DESCRIPTION

Rev.2.00

Oct 05, 2006

page 97 of 112

38K0 Group

REJ09B0337-0200

HARDWARE

Software Commands

Table 12 lists software commands. In standard serial I/O mode,

erase, program and read are controlled by transferring software

commands via the RxD pin. Software commands are explained

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 a programmer to the in-

ternal flash memory microcomputer.

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

3: All commands can be accepted when the flash memory is totally blank.

4: Address low is A0 to A7; Address middle is A8 to A15; Address high is A16 to A23. Address-high A16 to A23 are always “0016”.

here below. Basically, the software commands of the standard se-

rial I/O mode are the same as that of the parallel I/O mode, but the

block erase function is excluded, and 4 commands are added: ID

check, download, version data output and Boot ROM area output

functions.

Table 12 Software commands (Standard serial I/O mode)

Control command

Page read

Page program

4116

Address

(middle)

Address

(high)

Data

input

Data

input

Data

input

Not

acceptable

Not

acceptable

Acceptable

Erase all blocks

A716

D016

SRD1

output

Read status register

7016

SRD

output

Clear status register

5016

Address

(low)

Address

(middle)

Not

acceptable

ID check function

F516

Acceptable

Download function

FA16

Size

(low)

Size

(high)

Address

(high)

Check-

sum

ID size

ID1

To ID7

Not

acceptable

Version data output function

FB16

Data

input

required

number

of times

Acceptable

FC16

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

Not

acceptable

Boot ROM area output

function

Version

data

output

Address

(middle)

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