HD64F2149YV datasheet(735/1075 Pages) RENESAS

Nome de Peças	HD64F2149YV

Descrição Electrónicos	Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series

PDF	1075 Pages

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Fabricante Electrônico	RENESAS [Renesas Technology Corp]

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735 / 1075 page

Section 22 ROM

Rev. 3.00 Jan 18, 2006 page 707 of 1044

REJ09B0280-0300

area can be used when the programming control program transferred into the reserved area enters

the execution state. A stack area should be set up as required.

H'(FF)E080

H'(FF)EFFF

H'(FF)E880

Programming

control program

area*1

(2040 bytes)

ID code area

H'(FF)FF00

H'(FF)FF7F

Boot program

area*2

(128 bytes)

Boot program

area*2

(1920 bytes)

H'(FF)E088

Notes: 1.

This reserved area is used only for boot mode operation. Do not use this area for other

purpose.

The boot program area cannot be used until a transition is made to the execution state

for the programming control program transferred to the reserved area. Note that the

boot program remains stored in this area after a branch is made to the programming

control program.

Figure 22.10 RAM Areas in Boot Mode

In boot mode in the chip, the contents of the 8-byte ID code area shown below are checked to

determine whether the program is a programming control program compatible with the chip.

H'(FF)E080

↑ (Product ID code)

H'(FF)E088 ~

Programming control program instruction codes

If an original programming control program is used in boot mode, the 8-byte ID code shown

above should be added at the beginning of the program.

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