SH7020 Datasheet, PDF (436/509 Pages) Renesas Technology Corp – SuperH™ RISC engine

Addresses in MCU
modes 0, 1, and 2*
H'0000000
Addresses in
PROM mode
H'0000
On-chip
ROM space
(area 0)
H'0007FFF
H'7FFF
Note: Addresses in the figure are the uppermost shadow addresses of the on-chip ROM
space.
Figure 16.3 Memory Map of On-chip ROM
16.3 PROM Programming
The write/verify specifications in PROM mode are the same as for the standard EPROM
HN27C101. The page program system is not supported, so do not set the PROM writer to the page
programming mode. Naturally, PROM writers that only support the page programming mode
cannot be used. When selecting a PROM writer, check that the high-speed, high-reliability
programming system for each byte is supported.
16.3.1 Selecting the Programming Mode
There are two on-chip PROM programming modes: write and verify (which reads and confirms
the data written). Use the pins to select the modes (table 16.2).
RENESAS 423