參數(shù)資料
    

    


    


    
型號(hào)：
PSD935G1V-15B81I

    

    
廠商：
意法半導(dǎo)體

    

    
英文描述：
Configurable Memory System on a Chip for 8-Bit Microcontrollers

    

    
中文描述：
在8片位微控制器可配置存儲(chǔ)系統(tǒng)

    

    
文件頁(yè)數(shù)：
26/91頁(yè)

    

    
文件大?。?/td>
488K

    

    
代理商：
PSD935G1V-15B81I


    

    

    

	
    
    
    

    
    
	
    PSD935G2  
    PSD9XX Family
    25
    The 
    PSD935G2
    Functional
    Blocks
    (cont.)
    9.1.1.9.3   Flash Erase Suspend Instruction
    When a Flash Sector Erase operation is in progress, the Erase Suspend instruction will 
    suspend the operation by writing 0B0h to any even address when an appropriate Chip
    Select (FSi or CSBOOTi) is true. (See Table 8). This allows reading of data from another
    Flash sector after the Erase operation has been suspended. Erase suspend is accepted
    only during the Flash Sector Erase instruction execution and defaults to read array 
    mode. An Erase Suspend instruction executed during an Erase timeout will, in addition to
    suspending the erase, terminate the time out.  
    The Toggle Bit DQ6 stops toggling when the PSD935G2 internal logic is suspended. The
    toggle Bit status must be monitored at an address within the Flash sector being erased.
    The Toggle Bit will stop toggling between 0.1 μs and 15 μs after the Erase Suspend
    instruction has been executed. The PSD935G2 will then automatically be set to Read
    Flash Block Memory Array mode.
    If an Erase Suspend instruction was executed, the following rules apply:
     Attempting to read from a Flash sector that was being erased will output invalid data.
     Reading from a Flash sector that was 
    not
     being erased is valid.
     The Flash memory 
    cannot
     be programmed, and will only respond to Erase Resume 
    and Reset instructions (read is an operation and is OK).
     If a Reset instruction is received, data in the Flash sector that was being erased will 
    be invalid.
    9.1.1.9.4   Flash Erase Resume Instruction
    If an Erase Suspend instruction was previously executed, the erase operation may be 
    resumed by this instruction. The Erase Resume instruction consists of writing 030h to any
    even address while an appropriate Chip Select (FSi or CSBOOTi) is true. (See Table 8.)
    9.1.1.10   Specific Features
    9.1.1.10.1   Main Flash and Secondary Flash Sector Protect
    Each sector of main Flash and secondary Flash memory can be separately protected 
    against Program and Erase functions. Sector Protection provides additional data 
    security because it disables all program or erase operations. This mode can be activated
    (or deactivated) through the JTAG-ISP Port or a Device Programmer.
    Sector protection can be selected for each sector using the PSDsoft program. This will
    automatically protect selected sectors when the device is programmed through the JTAG
    contents using the JTAG Port or a Device Programmer. The microcontroller can read (but
    cannot change) the sector protection bits. 
    Any attempt to program or erase a protected Flash sector will be ignored by the device.
    The Verify operation will result in a read of the protected data. This allows a guarantee of
    the retention of the Protection status.
    The sector protection status can either be read by the MCU through the Flash protection
    and secondary Flash protection registers (CSIOP) or use the read sector protection
    instruction  (Table 8).
    
    
    
    
    
    


    


    

    相關(guān)PDF資料
    		

    PDF描述
    		

    
    

    
PSD935G1V-15J
Configurable Memory System on a Chip for 8-Bit Microcontrollers

    

    
PSD935G1V-15JI
Configurable Memory System on a Chip for 8-Bit Microcontrollers

    

    
PSD935G1V-15M
Configurable Memory System on a Chip for 8-Bit Microcontrollers

    

    
PSD935G1V-A-15MI
Configurable Memory System on a Chip for 8-Bit Microcontrollers

    

    
PSD935G1V-A-15U
Configurable Memory System on a Chip for 8-Bit Microcontrollers

    

    

    

    


    


    

    相關(guān)代理商/技術(shù)參數(shù)
    		

    參數(shù)描述
    		

    
    

    
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PSD935G2V-90U
功能描述:SPLD - 簡(jiǎn)單可編程邏輯器件 U 511-PSD835G2V-90U

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PSD954F2-90J
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 RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池?cái)?shù)量:10 最大工作頻率:66 MHz 延遲時(shí)間:25 ns 工作電源電壓:4.75 V to 5.25 V 電源電流:100 uA 最大工作溫度:+ 75 C 最小工作溫度:0 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:DIP-24

    

    
PSD954F2-90M
功能描述:SPLD - 簡(jiǎn)單可編程邏輯器件 U 511-PSD854F2-90M

 RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池?cái)?shù)量:10 最大工作頻率:66 MHz 延遲時(shí)間:25 ns 工作電源電壓:4.75 V to 5.25 V 電源電流:100 uA 最大工作溫度:+ 75 C 最小工作溫度:0 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:DIP-24

    

    
PSD954F2V-90J
功能描述:SPLD - 簡(jiǎn)單可編程邏輯器件 5.0V 2M 90ns

 RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池?cái)?shù)量:10 最大工作頻率:66 MHz 延遲時(shí)間:25 ns 工作電源電壓:4.75 V to 5.25 V 電源電流:100 uA 最大工作溫度:+ 75 C 最小工作溫度:0 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:DIP-24

    

    
    
    
    
	
    	
    
    
     
     
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