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参数资料
| 型号： | uPSD3212CV |
| 厂商： | 意法半导体 |
| 英文描述： | Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM(带8032微控制器内核和16Kbit SRAM的FLASH可编程系统器件) |
| 中文描述： | 闪存可编程系统设备与8032微控制器内核和16Kbit的SRAM（带8032微控制器内核和16Kbit SRAM的的闪存可编程系统器件） |
| 文件页数： | 91/151页 |
| 文件大小： | 1194K |
| 代理商： | UPSD3212CV |
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uPSD3212C, uPSD3212CV
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 the device is programmed through the JTAG
Port or a Device Programmer. Flash memory sec-
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 ignored by the device. The Verify
operation results in a READ of the protected data.
This allows a guarantee 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 CSIOP block). See Table 64 and Table
65.
primary
Reset Flash.
The Reset Flash instruction con-
sists of one WRITE cycle (see Table 62). It can
also be optionally preceded by the standard two
WRITE decoding cycles (writing AAh to 555h and
55h to AAAh). It must be executed after:
–
Reading the Flash Protection Status or Flash
ID
–
An Error condition has occurred (and the
device has set the Error Flag Bit (DQ5) to '1'
during a Flash memory Program or Erase
cycle.
The Reset Flash instruction puts the Flash memo-
ry back into normal READ Mode. If an Error condi-
tion has occurred (and the device has set the Error
Flag Bit (DQ5) to '1' the Flash memory is put back
into normal READ Mode within a few milliseconds
of the Reset Flash instruction having been issued.
The Reset Flash instruction is ignored when it is is-
sued during a Program or Bulk Erase cycle of the
Flash memory. The Reset Flash instruction aborts
any on-going Sector Erase cycle, and returns the
Flash memory to the normal READ Mode within a
few milliseconds.
Table 64. Sector Protection/Security Bit Definition – Flash Protection Register
Note: Bit Definitions:
Sec<i>_Prot
1 = Primary Flash memory or secondary Flash memory Sector <i> is write-protected.
Sec<i>_Prot
0 = Primary Flash memory or secondary Flash memory Sector <i> is not write-protected.
Table 65. Sector Protection/Security Bit Definition – Secondary Flash Protection Register
Note: 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
not used
not used
not used
not used
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
not used
not used
Sec1_Prot
Sec0_Prot
相关PDF资料 |
PDF描述 |
|---|---|
| uPSD3212 | Flash Programmable System Device with 8032 Microcontroller Core(嵌入高速“8032微控制器核”的Flash型可编程系统器件) |
| UPSD3215A-24T1 | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| UPSD3215AV-40T6T | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| UPSD3215BV-24U1 | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| UPSD3233A-40T6 | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
相关代理商/技术参数 |
参数描述 |
|---|---|
| UPSD3212CV-24T1T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM |
| UPSD3212CV-24T6 | 功能描述:8位微控制器 -MCU 3.0V 512K 24MHz RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| UPSD3212CV-24T6T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic |
| UPSD3212CV-24U1T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM |
| UPSD3212CV-24U6 | 功能描述:8位微控制器 -MCU 3.0V 512K 24MHz RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
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