Vector Table - NEC PD78076 User Manual

Pd78078 series; pd78078y series 8-bit single-chip microcontrollers

Table of Contents

(1) Vector table area

The 64-byte area 0000H to 003FH is reserved as a vector table area. The RESET input and program start

addresses for branch upon generation of each interrupt request are stored in the vector table area. Of the

16-bit address, low-order 8 bits are stored at even addresses and high-order 8 bits are stored at odd

(2) CALLT instruction table area

The 64-byte area 0040H to 007FH can store the subroutine entry address of a 1-byte call instruction (CALLT).

(3) CALLF instruction entry area

The area 0800H to 0FFFH can perform a direct subroutine call with a 2-byte call instruction (CALLF).

CHAPTER 5 CPU ARCHITECTURE

Table 5-2. Vector Table

Vector Table Address

Interrupt Request

INTSR/INTCSI2