H8SXSLASH1663 datasheet(927/1158 Pages) RENESAS

927 / 1158 page

Section 21 Flash Memory (0.18-

µm F-ZTAT Version)

Rev.1.00 Jun. 07, 2006 Page 875 of 1102

REJ09B0294-0100

Section 21 Flash Memory (0.18-

µm F-ZTAT Version)

The flash memory has the following features. Figure 21.1 is a block diagram of the flash memory.

21.1

Features

• Size

Product Classification

ROM Size

ROM Address

H8SX/1663

R5F61663

384 kbytes

H'000000 to H'05FFFF (modes 2, 6, 7)

H8SX/1664

R5F61664

512 kbytes

H'000000 to H'07FFFF (modes 2, 6, 7)

• Programming/erasing interface by the download of on-chip program

This LSI has a programming/erasing program. After downloading this program to the on-chip

RAM, programming/erasing can be performed by setting the parameters.

• Programming/erasing time

Programming time: 3 ms (typ) for 128-byte simultaneous programming

Erasing time: 2000 ms (typ) per 1 block (64 kbytes)

• Number of programming

The number of programming can be up to 100 times at the minimum. (1 to 100 times are

guaranteed.)

• Three on-board programming modes

SCI boot mode:

Using the on-chip SCI_4, the user MAT can be programmed/erased. In

SCI boot mode, the bit rate between the host and this LSI can be adjusted

automatically.

USB boot mode:

Using the on-chip USB, the user MAT can be programmed/erased.

User program mode: Using a desired interface, the user MAT can be programmed/erased.

• Off-board programming mode

Programmer mode: Using a PROM programmer, the user MAT can be programmed/erased.

• Programming/erasing protection

Protection against programming/erasing of the flash memory can be set by hardware

protection, software protection, or error protection.

• Flash memory emulation function using the on-chip RAM

Realtime emulation of the flash memory programming can be performed by overlaying parts

of the flash memory (user MAT) area and the on-chip RAM.

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