SM5953W44JP 参数 Datasheet PDF下载

SM5953

8-Bit Micro-controller

15KB with ISP Flash

& 256B RAM embedded

3. Memory Structure

The SM5953 memory structure follows general 8052 structure. It is 15KB program memory.

3.1

Program Memory

The SM5953 has 15KB on-chip flash memory which can be used as general program memory or EEPROM, on

which include up to 3.875K byte specific ISP service program memory space. The address range for the 15K byte

is $0000h to $3BFFh. The address range for the ISP service program is $3000h to $3F7Fh. The ISP service

program size can be partitioned as N blocks (N=0 to 8). When N = 1 means address $3E00h to $3F7Fh reserved

for ISP service program. When N=2 means memory address $3C00h to $3F7Fh reserved for ISP service

program…etc. Value N can be set and programmed into SM5953 configuration by writer. As shown in Fig. 3-1.

3F7F

3E00

3C00

3A00

3800

3600

3400

3200

3000

N=0

N=1

N=2

N=3

N=4

N=5

N=6

N=7

N=8

ISP service

Program space,

Up to 3.875K

15K Program

Memory space

0000

Fig. 3-1: SM5953 programmable Flash

Specifications subject to change without notice contact your sales representatives for the most recent information.

ISSFD-M074

Ver B

SM5953

12/27/2013

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