S3C8639 View Datasheet(PDF) - Samsung

Part Name

Description

View to exact match

S3C8639

8-bit single-chip CMOS microcontrollers

Samsung 

ADDRESS SPACES

S3C8639/C863A/P863A/C8647/F8647

PROGRAM MEMORY (ROM)

Program memory (ROM) stores program code or table data. S3C8639/C863A employ 32/48-Kbytes of

mask-programmable program memory. The memory address range is 0H–7FFFH/BFFFH (see Figure 2-1).

S3C8647 employs 24-Kbytes of mask-programmable program memory.

The memory address large is 0H-5FFFH.

The first 256 bytes of the ROM (0H–FFH) are reserved for interrupt vector addresses. Unoccupied locations in

the address range can be used as normal program memory. When you use the vector address area to store

program code, be careful not to overwrite vector addresses stored in these locations.

The ROM address at which program execution starts after a reset is 0100H.

(Decimal)

49,151

48-Kbyte Internal

Program Memory

(HEX)

BFFFH

32,767

24,575

32-Kbyte

24-Kbyte Internal

Program Memory

7FFFH

S3C863A

S3C8639

S3C8647

255

Interrupt

Vector Area

0

0FFH

0H

Figure 2-1. Program Memory Address Space

2-2

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