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18.8
Flash Memory PROM Mode
18.8.1
PROM Mode Setting
This LSI has a PROM mode, besides an on-board programming mode, as a flash memory
program/erase mode. In the PROM mode, a program can be freely written to the on-chip ROM
using a PROM writer that supports the Renesas 128kbytes flash memory on-chip microcomputer
device type.
For notes on PROM mode use, see sections 18.8.9, Notes on Memory Programming and 18.9,
Notes on Flash Memory Programming/Erasing.
18.8.2
Memory Map
Figure 18.15 shows the PROM mode memory map.
18.8.3
PROM Mode Operation
Table 18.10 shows how the different operating modes are set when using PROM mode, and table
18.11 lists the commands used in PROM mode. Details of each mode are given below.
• Memory Read Mode
Memory read mode supports byte reads.
• Auto-Program Mode
Auto-program mode supports programming of 128 bytes at a time. Status polling is used to
confirm the end of auto-programming.
• Auto-Erase Mode
Auto-erase mode supports automatic erasing of the entire flash memory. Status polling is used
to confirm the end of auto-erasing.
Address in
H8/3067RF
MCU mode
H'000000
On-chip ROM
area
H'01FFFF
Figure 18.15 PROM Mode Memory Map
Address in
PROM mode
H'000000
H'01FFFF
Rev. 4.00 Jan 26, 2006 page 645 of 938
Section 18 ROM
REJ09B0276-0400
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