ADDRESS SPACES

S3C9228/P9228

 

 

PROGRAM MEMORY (ROM)

Program memory (ROM) stores program code or table data. The S3C9228 has 8K bytes of mask-programable program memory. The program memory address range is therefore 0H-1FFFH. The first 2 bytes of the ROM (0000H–0001H) are an interrupt vector address. The program reset address in the ROM is 0100H.

(Decimal)

8,192

8K bytes

Internal

Program Memory Area

256

 

Program Start

 

2

 

 

 

 

 

 

1

 

Interrupt

 

Vector

 

 

0

 

 

 

 

 

 

(Hex)

1FFFH

0100H

0002H

0001H

0000H

Figure 2-1. S3C9228/P9228 Program Memory Address Space

2-2

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Samsung S3C9228/P9228, 8-Bit CMOS Microcontroller user manual Program Memory ROM