参数资料
型号: SST89E554A-40-C-NJ
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, PQCC44
封装: PLASTIC, MS-018AC, LCC-44
文件页数: 14/87页
文件大小: 996K
代理商: SST89E554A-40-C-NJ
Preliminary Specifications
FlashFlex51 MCU
SST89E554A / SST89V554A
21
2003 Silicon Storage Technology, Inc.
S71228-00-000
6/03
Symbol
Function
SFDT
Mailbox register for interfacing with flash memory block. (Data register).
Symbol
Function
SB1_i
Security Bit 1 status (inverse of SB1 bit)
SB2_i
Security Bit 2 status (inverse of SB2 bit)
SB3_i
Security Bit 3 status (inverse of SB3 bit)
Please refer to Table 9-1 for security lock options.
EDC_i
Double Clock Status
0: 12 clocks per machine cycle
1: 6 clocks per machine cycle
FLASH_BUSY Flash operation completion polling bit.
0: Device has fully completed the last IAP command.
1: Device is busy with flash operation.
SuperFlash Data Register (SFDT)
Location
76543210
Reset Value
B5H
SuperFlash Data Register
00H
SuperFlash Status Register (SFST) (Read Only Register)
Location
76
54
3
2
1
0
Reset Value
B6H
SB1_i
SB2_i
SB3_i
-
EDC_i
FLASH_BUSY
-
xxxxx0xxb
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