HD6433308 Datasheet, PDF (253/349 Pages) Hitachi Semiconductor – Hitachi Single-Chip MicroComputer

13.2.2 Socket Adapter Pin Assignments and Memory Map
The H8/330 can be programmed with a general-purpose PROM writer. Since the H8/330 package
has 80 or 84 pins instead of 28, a socket adapter is necessary. Table 13-3 lists recommended socket
adapters. Figure 13-2 shows the socket adapter pin assignments by giving the correspondence
between H8/330 pins and HN27C256 pin functions.
Figure 13-3 shows a memory map in the PROM mode. Since the H8/330 has only 16K bytes of
on-chip PROM, the address range should be specified as H’0000 to H’3FFF. H’FF data should be
specified for unused address areas.
It is important to limit the program address range to H'0000 to H'3FFF and specify H'FF data for
H'4000 and higher addresses. If data (other than H’FF) are written by mistake in addresses equal to
or greater than H’4000, it may become impossible to program or verify the PROM data. With a
windowed package, it is possible to erase the data and reprogram, but this cannot be done with a
plastic package, so particular care is required.
Table 13-3. Recommended Socket Adapters
Package
84-Pin PLCC
84-Pin windowed LCC
80-Pin QFP
Recommended Socket Adapter
HS338ESC01H
HS338ESG01H
HS338ESH01H
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