UPD78F9500MA-CAC-A Datasheet, PDF (34/342 Pages) Renesas Technology Corp – 8-Bit Single-Chip Microcontrollers

CHAPTER 3 CPU ARCHITECTURE
3.1.1 Internal program memory space
The internal program memory space stores programs and table data. This space is usually addressed by the
program counter (PC).
The 78K0S/KU1+ provide the following internal ROMs (or flash memory) containing the following capacities.
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Table 3-1. Internal ROM Capacity
Part Number
μPD78F9200, 78F9500
μPD78F9201, 78F9501
μPD78F9202, 78F9502
Structure
Flash memory
Internal ROM
Capacity
1,024 × 8 bits
2,048 × 8 bits
4,096 × 8 bits
The following areas are allocated to the internal program memory space.
(1) Vector table area
The 20-byte area of addresses 0000H to 0013H is reserved as a vector table area. This area stores program
start addresses to be used when branching by RESET or interrupt request generation. Of a
16-bit address, the lower 8 bits are stored in an even address, and the higher 8 bits are stored in an odd
address.
Vector Table Address
0000H
0006H
0008H
000AH
Table 3-2. Vector Table
Interrupt Request
Reset
INTLVI
INTP0
INTP1
Vector Table Address
000CH
000EH
0010H
0012H
Interrupt Request
INTTMH1
INTTM000^Note
INTTM010^Note
INTAD^Note
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(2) CALLT instruction table area
The subroutine entry address of a 1-byte call instruction (CALLT) can be stored in the 64-byte area of
addresses 0040H to 007FH.
(3) Option byte area
The option byte area is the 1-byte area of address 0080H. For details, refer to CHAPTER 15 OPTION
BYTE.
(4) Protect byte area
The protect byte area is the 1-byte area of address 0081H. For details, refer to CHAPTER 16 FLASH
MEMORY.
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User’s Manual U18172EJ3V0UD