參數(shù)資料
型號： PSD4135F1-B-20B81
廠商： 意法半導體
英文描述： Flash In-System-Programmable Peripherals for 16-Bit MCUs
中文描述： Flash在系統(tǒng)可編程外設(shè)的16位微控制器
文件頁數(shù)： 28/93頁
文件大?。?/td> 503K
代理商： PSD4135F1-B-20B81
Preliminary Information
PSD4000 Series
25
The
PSD4000
Functional
Blocks
(cont.)
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
Flash Protection Register
9.1.1.9.2 Reset Instruction
The Reset instruction consists of one write cycle (see Table 8). It can also be optionally
preceded by the standard two write decoding cycles (writing AAh to AAAh and 55h to
554h).
The Reset instruction must be executed after:
1. Reading the Flash Protection status or Flash ID using the Flash instruction.
2. When an error condition occurs (DQ5 (DQ13) goes high) during a Flash programming
or erase cycle.
The Reset instruction will reset the Flash to normal Read Mode immediately. However, if
there is an error condition (DQ5 (DQ13) goes high), the Flash memory will return to the
Read Mode in 25 μSeconds after the Reset instruction is issued.
The Reset instruction is ignored when it is issued during a Flash programming or Bulk
Erase cycle. The Reset instruction will abort the on going sector erase cycle and return the
Flash memory to normal Read Mode in 25 μSeconds.
9.1.1.9.3 Reset Pin Input
The reset pulse input from the pin will abort any operation in progress and reset the Flash
memory to Read Mode. When the reset occurs during a programming or erase cycle, the
Flash memory will take up to 25 μSeconds to return to Read Mode. It is recommended that
the reset pulse (except power on reset, see Reset Section) be at least 25 μSeconds such
that the Flash memory will always be ready for the MCU to fetch the boot code after reset
is over.
Bit Definitions:
Sec<i>_Prot
Sec<i>_Prot
1 = Main Flash Sector <i> is write protected.
0 = Main Flash Sector <i> is not write protected.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Security_
Bit
*
*
*
Sec3_Prot
Sec2_Prot
Sec1_Prot Sec0_Prot
Flash Boot Protection Register
Bit Definitions:
Sec<i>_Prot
Sec<i>_Prot
Security_Bit
1 = Flash Boot Sector <i> is write protected.
0 = Flash Boot Sector <i> is not write protected.
0 = Security Bit in device has not been set.
1 = Security Bit in device has been set.
Table 10. Sector Protection/Security Bit Definition
*:
Not used.
相關(guān)PDF資料
PDF描述
PSD4135F1-B-20B81I Ceramic Chip Capacitors / Standard C0G; Capacitance [nom]: 6.8pF; Working Voltage (Vdc)[max]: 50V; Capacitance Tolerance: +/-0.5pF; Dielectric: Multilayer Ceramic; Temperature Coefficient: C0G (NP0); Lead Style: Surface Mount Chip; Lead Dimensions: 1206; Termination: Tin Plated Nickel Barrier; Body Dimensions: 0.126&quot; x 0.063&quot;; Container: Bulk; Features: Unmarked
PSD4135F1-B-20J Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4135F1-B-20JI Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4135F1-B-20M Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4135F1-B-20MI Flash In-System-Programmable Peripherals for 16-Bit MCUs
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PSD4135F1-B-20B81I 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4135F1-B-20J 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4135F1-B-20JI 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4135F1-B-20M 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4135F1-B-20MI 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs
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