參數(shù)資料
型號(hào): uPSD3233
廠商: 意法半導(dǎo)體
英文描述: Flash Programmable System Device with 8032 Microcontroller Core(嵌入高速“8032微控制器核”的Flash型可編程系統(tǒng)器)
中文描述: 閃存可編程系統(tǒng)器件與8032微控制器內(nèi)核(嵌入高速“8032微控制器核”的閃存型可編程系統(tǒng)器)
文件頁數(shù): 103/164頁
文件大?。?/td> 1133K
代理商: UPSD3233
103/164
μ
PSD3200 FAMILY
DRAFT(Thursday 20 June 2002, 13:15).
Specific Features
Flash Memory Sector Protect.
Each
and secondary Flash memory sector can be sepa-
rately protected against Program and Erase cy-
cles. Sector Protection provides additional data
security because it disables all Program or Erase
cycles. This mode can be activated through the
JTAG Port or a Device Programmer.
Sector protection can be selected for each sector
using the PSDsoft Express Configuration pro-
gram. This automatically protects selected sectors
when thedevice is programmed through the JTAG
Port or a Device Programmer. Flash memory sec-
primary
tors can be unprotected to allow updating of their
contents using the JTAG Port or a Device Pro-
grammer. The MCU can read (but cannot change)
the sector protection bits.
Any attempt to program or erase a protected Flash
memory sector is ignoredby thedevice. TheVerify
operation results in a read of the protected data.
This allows aguarantee of the retention of the Pro-
tection status.
The sector protection status can be read by the
MCU through the Flash memory protection regis-
ters (in the CSIOPblock). See Table 85 and Table
86.
Table 85. Sector Protection/Security Bit Definition – Flash Protection Register
Note: 1. Bit Definitions:
Sec<i>_Prot
1 = Primary Flash memory or secondary Flash memory Sector <i> iswrite protected.
Sec<i>_Prot
0 = Primary Flash memory or secondary Flash memory Sector <i> isnot write protected.
Table 86. Sector Protection/Security Bit Definition – Secondary Flash Protection Register
Note: 1. Bit Definitions:
Sec<i>_Prot
1 = Secondary Flash memory Sector <i> is write protected.
Sec<i>_Prot
0 = Secondary Flash memory Sector <i> is not write protected.
Security_Bit
0 = Security Bit in device has not been set.
1 = Security Bit in device has been set.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Sec7_Prot
Sec6_Prot
Sec5_Prot
Sec4_Prot
Sec3_Prot
Sec2_Prot
Sec1_Prot
Sec0_Prot
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Security_Bit
not used
not used
not used
Sec3_Prot
Sec2_Prot
Sec1_Prot
Sec0_Prot
相關(guān)PDF資料
PDF描述
uPSD3234(中文) Flash Programmable System Device with 8032 Microcontroller Core(嵌入高速“8032微控制器核”的Flash型可編程系統(tǒng)器)
uPSD3212C(中文) Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM(帶8032微控制器內(nèi)核和16Kbit SRAM的FLASH可編程系統(tǒng)器件)
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uPSD3254BV(中文) Flash Programmable System Devices with 8032 Microcontroller Core(帶8032微控制器內(nèi)核的FLASH可編程系統(tǒng)器件)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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