参数资料
型号: S3C80B5XX-AM
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP24
封装: 0.300 INCH, SDIP-24
文件页数: 2/146页
文件大小: 740K
代理商: S3C80B5XX-AM
ADDRESS SPACES
S3C80A4/C80A8/C80A5/C80B4/C80B8/C80B5
2-2
PROGRAM MEMORY (ROM)
Program memory stores program code or table data. The S3C80A5/C80B5 has 15, 872 bytes of internal
programmable program memory, and the program memory address range is therefore 0000H-3E00H of ROM .
The S3C80A8/C80B8 has 8-Kbyte(0000H-1FFFH) of internal programmable program memory and the
S3C80A4/C80B4 has 4-Kbyte(0000H-0FFFH) of internal programmable program memory (see Figure 2-1).
The first 256 bytes of the ROM (0H–0FFH) are reserved for interrupt vector addresses. Unused locations in this
address range can be used as normal program memory. If you do use the vector address area to store program
code, be careful to avoid overwriting vector addresses stored in these locations.
The ROM address at which program execution starts after a reset is 0100H.
15,872
15-Kbyte
ROM
8-Kbyte
ROM
4-Kbyte
ROM
Interrupt
Vector Area
8,191
4,095
255
0
3E00H
1FFFH
0FFFH
0FFH
0H
S3C80A4/C80B4
(Decimal)
(HEX)
S3C80A8/C80B8
S3C80A5/C80B5
Figure 2-1. Program Memory Address Space
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