H8SLASH3021 datasheet(515/712 Pages) RENESAS

515 / 712 page

15. ROM

Rev.2.00 Mar. 22, 2007 Page 491 of 684

REJ09B0352-0200

Figure 15.16 shows the memory map in PROM mode.

H'000000

MCU mode

PROM mode

H'03FFFF

H'00000

H'3FFFF

On-chip ROM

Figure 15.16 Memory Map in PROM Mode

15.10.2

Notes on Use of PROM Mode

1. A write to a 128-byte programming unit in PROM mode should be performed once only.

Erasing must be carried out before reprogramming an address that has already been

programmed.

2. When using a PROM programmer to reprogram a device on which on-board

programming/erasing has been performed, it is recommended that erasing be carried out before

executing programming.

3. The memory is initially in the erased state when the device is shipped by Renesas. For samples

for which the erasure history is unknown, it is recommended that erasing be executed to check

and correct the initialization (erase) level.

4. The H8/3022F does not support a product identification mode as used with general-purpose

EPROMs, and therefore the device name cannot be set automatically in the PROM

programmer.

5. Refer to the instruction manual provided with the socket adapter, or other relevant

documentation, for information on PROM programmer and associated program versions that

are compatible with the PROM mode of the H8/3022F.

H8/3021 Datasheet(PDF) 515 Page - Renesas Technology Corp