Chapter 3 Cpu Architecture; Memory Space - NEC 78K0 User Manual

8-bit single-chip microcontrollers

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78K0/KC1 products can each access a 64 KB memory space. Figures 3-1 to 3-5 show the memory maps.

Caution Regardless of the internal memory capacity, the initial value of the internal memory size

switching register (IMS) of all 78K0/KC1 products is fixed (IMS = CFH). Therefore, set the value

corresponding to each product as indicated below.

Table 3-1. Set Value of Internal Memory Size Switching Register (IMS)

CHAPTER 3 CPU ARCHITECTURE

Internal Memory Size Switching Register (IMS)

Value corresponding to mask ROM version

User's Manual U16227EJ2V0UD

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