Memory Bank ( Μ Pd78F0536, 78F0537, And 78F0537D Only); Internal Data Memory Space - NEC 78K0 Series User Manual

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3.1.2 Memory bank ( PD78F0536, 78F0537, and 78F0537D only)
The 16 KB area 8000H to BFFFH is assigned to memory banks 0 to 3 in the
memory banks 0 to 5 in the
The banks are selected by using a memory bank select register (BANK). For details, see CHAPTER 4 MEMORY
BANK SELECT FUNCTION (
Cautions 1. Instructions cannot be fetched between different memory banks.
2. Branch and access cannot be directly executed between different memory banks. Execute
branch or access between different memory banks via the common area.
3. Allocate interrupt servicing in the common area.
4. An instruction that extends from 7FFFH to 8000H can only be executed in memory bank 0.

3.1.3 Internal data memory space

78K0/KE2 products incorporate the following RAMs.
(1) Internal high-speed RAM
Part Number
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PD78F0531
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PD78F0532
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PD78F0533
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PD78F0534
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PD78F0535
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PD78F0536
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PD78F0537, 78F0537D
The 32-byte area FEE0H to FEFFH is assigned to four general-purpose register banks consisting of eight 8-bit
registers per bank.
This area cannot be used as a program area in which instructions are written and executed.
The internal high-speed RAM can also be used as a stack memory.
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CHAPTER 3 CPU ARCHITECTURE
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PD78F0537 and 78F0537D.
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PD78F0536, 78F0537, AND 78F0537D ONLY)).
Table 3-4. Internal High-Speed RAM Capacity
768 × 8 bits (FC00H to FEFFH)
1024 × 8 bits (FB00H to FEFFH)
Preliminary User's Manual U17260EJ3V1UD
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PD78F0536, and assigned to
Internal High-Speed RAM