upd78f0124hgba1-8et-a Renesas Electronics Corporation., upd78f0124hgba1-8et-a Datasheet - Page 39

• Manufacturer Part Number: upd78f0124hgba1-8et-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

3.1 Memory Space
Products in the 78K0/KD1+ can each access a 64 KB memory space. Figures 3-1 to 3-4 show the memory maps.
Caution Regardless of the internal memory capacity, the initial value of the internal memory size
PD78F0122H
PD78F0123H
PD78F0124H, 78F0124HD
Flash Memory Version
switching register (IMS) of all products in the 78K0/KD1+ is fixed (IMS = CFH). Therefore, set the
value corresponding to each product as indicated below. In addition, set the following values to
the internal memory size switching register (IMS) when using the 78K0/KD1+ to evaluate the
program of a mask ROM version of the 78K0/KD1.
(78K0/KD1+)
Table 3-1. Set Values of Internal Memory Size Switching Register (IMS)
PD780121
PD780122
PD780123
PD780124
Target Mask ROM Version
CHAPTER 3 CPU ARCHITECTURE
(78K0/KD1)
User’s Manual U16962EJ3V0UD
42H
44H
C6H
C8H
Internal Memory Size Switching Register (IMS)
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