參數(shù)資料
型號： ST7FLCD1G9M1
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDSO28
封裝： ROHS COMPLIANT, SO-28
文件頁數(shù)： 25/96頁
文件大?。?/td> 846K
代理商： ST7FLCD1G9M1
ST7FLCD1
Flash Program Memory
This register is reserved for use by Programming Tool software. It controls the Flash programming
and erasing operations.
For details on customizing Flash programming methods and In-Circuit Testing, refer to the ST7
Flash Programming Reference Manual and relevant Application Notes.
5.8
Flash Option Bytes
Each device is available for production in user programmable versions (Flash) as well as in factory
coded versions (ROM). Flash devices are shipped to customers with a default content (FFh), while
ROM factory coded parts contain the code supplied by the customer. This implies that Flash
devices have to be configured by the customer using the Option Bytes while the ROM devices are
factory-configured.
The option bytes are used to select the hardware configuration of the microcontroller. They have no
address in the memory map and can be accessed only in programming mode (for example, using a
standard ST7 programming tool). The default content of the Flash is fixed to FFh. To program
directly the Flash devices using ICP, Flash devices are shipped to customers with the internal RC
clock source enabled. In masked ROM devices, the option bytes are fixed in hardware by the ROM
code.
Static Option Byte 1
OPT0 = FMP_R Flash memory read-out protection
This option indicates if the user Flash memory is protected against read-out piracy. This protection
is based on a read and write protection of the memory in Test and ICP modes. Erasing the option
bytes when the FMP_R option is selected causes the entire user memory to be erased first.
0
Read-out protection enabled
1
Read-out protection disabled
Static Option Byte 2
76543210
FMP_R
Default
11111111
76543210
Default
11111111
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