參數(shù)資料
型號: C515C-LM
廠商: INFINEON TECHNOLOGIES AG
元件分類: 8位微控制器
英文描述: 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述: 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存
文件頁數(shù): 68/96頁
文件大?。?/td> 1285K
代理商: C515C-LM
C515C
Data Sheet
64
2003-02
Table 14
Lock Bits at
D1, D0
D1
1
Lock Bit Protection Types
Protection
Level
Protection Type
D0
1
Level 0
The OTP lock feature is disabled. During normal
operation of the C515C-8E, the state of the EA pin is
not latched on reset.
During normal operation of the C515C-8E, MOVC
instructions executed from external program memory
are disabled from fetching code bytes from internal
memory. EA is sampled and latched on reset. An OTP
memory read operation is only possible according to
ROM verification mode 2, as it is defined for a
protected ROM version of the C515C-8R. Further
programming of the OTP memory is disabled
(reprogramming security).
Same as level 1, but also OTP memory read operation
using ROM verification mode 2 is disabled.
Same as level 2; but additionally external code
execution by setting EA = low during normal operation
of the C515C-8E is no more possible.
External code execution, which is initiated by an
internal program (e.g. by an internal jump instruction
above the ROM boundary), is still possible.
1
0
Level 1
0
1
Level 2
0
0
Level 3
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