UPD77113A View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD77113A

16-BIT FIXED-POINT DIGITAL SIGNAL PROCESSORS

NEC => Renesas Technology 

µPD77113A, 77114

7. MEMORY MAP

A Harvard architecture, in which the instruction memory space and data memory space are separated is

employed.

7.1 Instruction Memory

7.1.1 Instruction memory map

The instruction memory space consists of 64K words × 32 bits, and the capacity and type of the memory differ

depending on the product.

µPD77113A, 77114

0 x FFFF

Internal instruction

ROM

(48K words)

0x4000

0 x 3FFF

System

0x1000

0 x 0 F F F Internal instruction RAM

0x0240

(3.5K words)

0x023F

0x0200

Vector area (64 words)

0 x 0 1FF

0x0100

System

0 x 0 0 F F Boot-up ROM

0x0000

(256 words)

Caution Programs and data cannot be placed at addresses reserved for the system, nor can these

addresses be accessed. If these addresses are accessed, the normal operation of the device

cannot be guaranteed.

Data Sheet U14373EJ3V0DS

25

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