HD6433044 Datasheet, PDF (568/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer

18.2 PROM Mode
18.2.1 PROM Mode Setting
In PROM mode, the H8/3048 version with on-chip PROM suspends its microcontroller functions,
enabling the on-chip PROM to be programmed. The programming method is the same as for the
HN27C101, except that page programming is not supported. Table 18-2 indicates how to select
PROM mode.
Table 18-2 Selecting PROM Mode
Pins
Three mode pins (MD₂, MD₁, MD₀)
STBY pin
P5₁ and P5₀
Setting
Low
High
18.2.2 Socket Adapter and Memory Map
The PROM is programmed using a general-purpose PROM programmer with a socket adapter to
convert to 32 pins. Table 18-3 lists the socket adapter for each package option. Figure 18-2 shows
the pin assignments of the socket adapter. Figure 18-3 shows a memory map in PROM mode.
Table 18-3 Socket Adapter
Microcontroller
H8/3048
Package
100-pin QFP (FP-100B)
100-pin TQFP (TFP-100B)
—Preliminary—
Socket Adapter
HS3042ESHS1H
HS3042ESNS1H
The size of the H8/3048 PROM is 128 kbytes. Figure 18-3 shows a memory map in PROM mode.
H'FF data should be specified for unused address areas in the on-chip PROM.
When programming the H8/3048 with a PROM programmer, set the address range to H'00000 to
H'1FFFF.
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