UPD75P3036 datasheet(21/67 Pages) RENESAS

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Data Sheet U11575EJ1V1DS

µPD75P3036

6.2 Program Memory (PROM) ... 16384 x 8 bits

The program memory consists of 16384 x 8-bit one-time PROM or EPROM.

• Addresses 0000H and 0001H

Vector table wherein the program start address and the values set for the RBE and MBE at the time a RESET signal is

generated are written. Reset start is possible from any address.

• Addresses 0002H to 000DH

Vector table wherein the program start address and the values set for the RBE and MBE by each vectored interrupt are

written. Interrupt processing can start from any address.

• Addresses 0020H to 007FH

Table area referenced by the GETI instructionNote.

Note

The GETI instruction realizes a 1-byte instruction on behalf of any 2-byte/3-byte instruction, or two 1-byte

instructions. It is used to decrease the number of program steps.

6. PROGRAM COUNTER (PC) AND MEMORY MAP

6.1 Program Counter (PC) ... 14 bits

This is a 14-bit binary counter that stores program memory address data.

Figure 6-1. Configuration of Program Counter

PC13

PC12

PC11

PC10

PC9

PC8

PC7

PC6

PC5

PC4

PC3

PC2

PC1

PC0

UPD75P3036 Datasheet(PDF) 21 Page - Renesas Technology Corp