H8SXSLASH1663R datasheet(1204/1504 Pages) RENESAS

1204 / 1504 page

Section 25 Flash Memory

Rev. 2.00 Sep. 24, 2008 Page 1172 of 1468

REJ09B0412-0200

Figure 25.21 shows an example of the procedure to program the tuned data in block EB0 of the

user MAT.

Flash memory

user MAT

EB8 to EB15*1

Notes:

EB8 to EB13 in the H8SX/1663.

EB8 to EB23 in the H8SX/1668.

H'05FFFF in the H8SX/1663.

H'0FFFFF in the H8SX/1668.

Download area

Tuned data area

Area for programming/

erasing program etc.

H'00000

H'01000

H'02000

H'03000

H'04000

H'05000

H'06000

H'07000

H'08000

H'7FFFF*2

Specified by FTDAR

H'FFA000

H'FFB000

H'FFAFFF

H'FFBFFF

EB0

EB1

EB2

EB3

EB4

EB5

EB6

EB7

(1) Exit RAM emulation mode.

(2) Transfer user-created programming/erasing procedure program.

(3) Download the on-chip programming/erasing program to the area

specified by FTDAR. FTDAR setting should avoid the tuned data area.

(4) Program after erasing, if necessary.

Figure 25.21 Programming Tuned Data (H8SX/1664)

1. After tuning program data is completed, clear the RAMS bit in RAMER to 0 to cancel the

overlaid RAM.

2. Transfer the user-created procedure program to the on-chip RAM.

3. Start the procedure program and download the on-chip program to the on-chip RAM. The start

address of the download destination should be specified by FTDAR so that the tuned data area

does not overlay the download area.

4. When block EB0 of the user MAT has not been erased, the programming program must be

downloaded after block EB0 is erased. Specify the tuned data saved in the FMPAR and

FMPDR parameters and then execute programming.

Note:

Setting the RAMS bit to 1 makes all the blocks of the user MAT enter the

programming/erasing protection state (emulation protection state) regardless of the setting

of the RAM2 to RAM0 bits. Under this condition, the on-chip program cannot be

downloaded. When data is to be actually programmed and erased, clear the RAMS bit

to 0.

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