参数资料
型号: SST89C58RC-40-I-TQJE
厂商: Microchip Technology
文件页数: 31/88页
文件大小: 0K
描述: IC MCU 8BIT FLASH 40TQFP
标准包装: 160
系列: FlashFlex®
核心处理器: 8051
芯体尺寸: 8-位
速度: 40MHz
连通性: EBI/EMI,I²C,SMBus,UART/USART
外围设备: 欠压检测/复位,POR,WDT
输入/输出数: 32
程序存储器容量: 32KB(32K x 8)
程序存储器类型: 闪存
EEPROM 大小: 2K x 8
RAM 容量: 1K x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 44-TQFP
包装: 托盘
2011 Silicon Storage Technology, Inc.
DS25100A
12/11
37
FlashFlex MCU
SST89C58RC
Data Sheet
A Microchip Technology Company
Secure-Page0, Secure-Page1, Secure-Page2, Secure-Page3, and Secure-Page4
Secure-Page0, Secure-Page1, Secure-Page2, Secure-Page3, and Secure-Page4 commands are
used to program the page security bits. Upon completion of any of these commands, the page security
options will be updated immediately.
Page security bits previously in un-programmed state can be programmed by these commands. The
factory setting for these bits is all ‘1’s which indicates the pages are not security locked.
Figure 13:Secure-Page0-4
Select Page
Secure_Page0: MOV SFAH, #90H
Secure_Page1: MOV SFAH, #91H
Secure_Page2: MOV SFAH, #92H
Secure_Page3: MOV SFAH, #93H
Secure_Page4: MOV SFAH, #94H
SFCF[7] indicates
operation complete
Command Execution
MOV SFCM, #03H
1323 F42.0
IAP Enable
ORL SFCF, #40H
Feed Sequence
MOV SFIS0, #A2H
MOV SFIS1, #DFH
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