38K2 datasheet(140/358 Pages) RENESAS

140 / 358 page

FUNCTIONAL DESCRIPTION

Rev.2.00

Oct 15, 2006

page 121 of 130

38K2 Group

REJ09B0338-0200

HARDWARE

qID Check

This command checks the ID code. Execute the boot ID check

command as explained here following.

qID Code

When the flash memory is not blank, the ID code sent from the se-

rial programmer and the ID code written in the flash memory are

compared to see if they match. If the codes do not match, the

command sent from the serial programmer is not accepted. An ID

code contains 8 bits of data. Area is, from the 1st byte, addresses

FFD416 to FFDA16. Write a program into the flash memory, which

already has the ID code set for these addresses.

Fig. 163 Timing for ID check

ID size

ID1

ID7

F516

D416

FF16

0016

SCLK

RxD

TxD

SRDY (BUSY)

ROM code protect control

ID7

ID6

ID5

ID4

ID3

ID2

ID1

FFDB16

FFDA16

FFD916

FFD816

FFD716

FFD616

FFD516

FFD416

Address

Interrupt vector area

Fig. 164 ID code storage addresses

(1) Transfer the “F516” command code with the 1st byte.

(2) Transfer addresses A0 to A7, A8 to A15 and A16 to A23 (“0016”)

of the 1st byte of the ID code with the 2nd, 3rd and 4th respec-

tively.

(3) Transfer the number of data sets of the ID code with the 5th

byte.

(4) Transfer the ID code with the 6th byte onward, starting with the

1st byte of the code.

38K2 Datasheet(PDF) 140 Page - Renesas Technology Corp

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