Internal Program Memory Space - NEC 78K0 Series User Manual

3.1.1 Internal program memory space

The internal program memory space stores the program and table data. Normally, it is addressed with the program
counter (PC).
78K0/KE2 products incorporate internal ROM (flash memory), as shown below.
Part Number
µ
PD78F0531 Flash memory
µ
PD78F0532
µ
PD78F0533
µ
PD78F0534
µ
PD78F0535
µ
PD78F0536
µ
PD78F0537,
78F0537D
The internal program memory space is divided into the following areas.
(1) Vector table area
The 64-byte area 0000H to 003FH is reserved as a vector table area. The program start addresses for branch
upon reset or generation of each interrupt request are stored in the vector table area.
Of the 16-bit address, the lower 8 bits are stored at even addresses and the higher 8 bits are stored at odd
addresses.
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CHAPTER 3 CPU ARCHITECTURE
Table 3-2. Internal ROM Capacity
Structure
16384 × 8 bits (0000H to 3FFFH)
24576 × 8 bits (0000H to 5FFFH)
32768 × 8 bits (0000H to 7FFFH)
49152 × 8 bits (0000H to BFFFH)
61440 × 8 bits (0000H to EFFFH)
98304 × 8 bits
(0000H to 7FFFH (common area) + 8000H to BFFFH (bank area) × 4)
131072 × 8 bits
(0000H to 7FFFH (common area) + 8000H to BFFFH (bank area) × 6)
Preliminary User's Manual U17260EJ3V1UD
Internal ROM
Capacity