HD64F3048F16 Datasheet, PDF (646/903 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 18 ROM (H8/3048F-ONE: Single Power Supply, H8/3048B Mask ROM Version)
18.10.2 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 writer 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 H8/3048F-ONE 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
writer.
5. Refer to the instruction manual provided with the socket adapter, or other relevant
documentation, for information on PROM writers and associated program versions that are
compatible with the PROM mode of the H8/3048F-ONE.
6. Select a Renesas Technology 128 kbytes flash memory on-board microcomputer device type.
If HN28F101 is selected, the LSI may be permanently damaged.
Rev. 3.00 Sep 27, 2006 page 618 of 872
REJ09B0325-0300