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参数资料
| 型号： | SST89E58RD2-40-C-PIE |
| 厂商： | SILICON STORAGE TECHNOLOGY INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PDIP40 |
| 封装： | LEAD FREE, PLASTIC, MS-011AC, DIP-40 |
| 文件页数： | 5/91页 |
| 文件大小： | 1017K |
| 代理商： | SST89E58RD2-40-C-PIE |
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Preliminary Specifications
FlashFlex51 MCU
SST89E52RD2 / SST89E54RD2 / SST89E58RD2 / SST89E516RD2
SST89V52RD2 / SST89V54RD2 / SST89V58RD2 / SST89V516RD2
13
2004 Silicon Storage Technology, Inc.
S71255-00-000
3/04
FIGURE
3-4: PROGRAM MEMORY ORGANIZATION FOR 64 KBYTE SST89E/V516RD2
3.2 Program Memory Block Switching
The program memory block switching feature of the device allows either Block 1 or the lowest 8 KByte of Block 0 to be
used for the lowest 8 KByte of the program address space. SFCF[1:0] controls program memory block switching.
1255 F04.0
External
64 KByte
EA# = 0
FFFFH
0000H
64 KByte
Block 0
EA# = 1
SFCF[1:0] = 01, 10, 11
FFFFH
0000H
56 KByte
Block 0
8 KByte
Block 1
EA# = 1
SFCF[1:0] = 00
FFFFH
2000H
0000H
1FFFH
TABLE
3-1: SFCF VALUES FOR PROGRAM MEMORY BLOCK SWITCHING FOR SST89E/V516RD2
SFCF[1:0]
Program Memory Block Switching
01, 10, 11
Block 1 is not visible to the program counter (PC).
Block 1 is reachable only via in-application programming from 0000H - 1FFFH.
00
Block 1 is overlaid onto the low 8K of the program address space; occupying address locations 0000H - 1FFFH.
When the PC falls within 0000H - 1FFFH, the instruction will be fetched from Block 1 instead of Block 0.
Outside of 0000H - 1FFFH, Block 0 is used. Locations 0000H - 1FFFH of Block 0 are reachable through
in-application programming.
T3-1.0 1255
TABLE
3-2: SFCF VALUES FOR PROGRAM MEMORY BLOCK SWITCHING FOR SST89E/V5XRD2
SFCF[1:0]
Program Memory Block Switching
10, 11
Block 1 is not visible to the PC;
Block 1 is reachable only via in-application programming from E000H - FFFFH.
01
Both Block 0 and Block 1 are visible to the PC.
Block 0 is occupied from 0000H - 7FFFH. Block 1 is occupied from E000H - FFFFH.
00
Block 1 is overlaid onto the low 8K of the program address space; occupying address locations 0000H - 1FFFH.
When the PC falls within 0000H - 1FFFH, the instruction will be fetched from Block 1 instead of Block 0.
Outside of 0000H - 1FFFH, Block 0 is used. Locations 0000H - 1FFFH of Block 0 are reachable through
in-application programming.
T3-2.0 1255
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| SST89E516RD2-40-C-PIE | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PDIP40 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SST89E58RD2-40-C-PIE1 | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89E58RD2-40-C-PIF2 | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89E58RD2-40-C-PJ | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89E58RD2-40-C-PJE1 | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89E58RD2-40-C-PJF2 | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
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