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    參數(shù)資料
    

    


    


    
型號(hào)：
PSD834490JIT

    

    
廠商：
意法半導(dǎo)體

    

    
英文描述：
Flash In-System Programmable ISP Peripherals For 8-bit MCUs

    

    
中文描述：
Flash在系統(tǒng)可編程ISP的外設(shè)的8位微控制器

    

    
文件頁數(shù)：
40/110頁

    

    
文件大?。?/td>
1737K

    

    
代理商：
PSD834490JIT


    

    

    

	
    
    
    

    
    
	
    PSD813F2, PSD833F2, PSD834F2, PSD853F2, PSD854F2
    40/110
    Input Macrocells (IMC)
    The CPLD has 24 Input Macrocells (IMC), one for
    each pin on Ports A, B, and C. The architecture of
    the Input Macrocells (IMC) is shown in 
    Figure
    17., page 41
    . The Input Macrocells (IMC) are indi-
    vidually configurable, and can be used as a latch,
    register, or to pass incoming Port signals prior to
    driving them onto the PLD input bus. The outputs
    of the Input Macrocells (IMC) can be read by the
    MCU through the internal data bus.
    The enable for the latch and clock for the register
    are driven by a multiplexer whose inputs are a
    product term from the CPLD AND Array or the
    MCU Address Strobe (ALE/AS). Each product
    term output is used to latch or clock four Input
    Macrocells (IMC). Port inputs 3-0 can be con-
    trolled by one product term and 7-4 by another.
    Configurations for the Input Macrocells (IMC) are
    specified by equations written in PSDabel (see Ap-
    plication Note 
    AN1171
    ). Outputs of the Input Mac-
    rocells (IMC) can be read by the MCU via the IMC
    buffer. 
    See 
    the 
    section 
    PORTS, page 51
    .
    entitled 
    I/O
    Input Macrocells (IMC) can use Address Strobe
    (ALE/AS, PD0) to latch address bits higher than
    A15. Any latched addresses are routed to the
    PLDs as inputs.
    Input Macrocells (IMC) are particularly useful with
    handshaking communication applications where
    two processors pass data back and forth through
    a common mailbox. 
    Figure 18., page 42
     shows a
    typical configuration where the Master MCU writes
    to the Port A Data Out Register. This, in turn, can
    be read by the Slave MCU via the activation of the
    “Slave-Read” output enable product term.
    The Slave can also write to the Port A Input Mac-
    rocells (IMC) and the Master can then read the In-
    put Macrocells (IMC) directly.
    Note that the “Slave-Read” and “Slave-Wr” signals
    are product terms that are derived from the Slave
    MCU inputs Read Strobe (RD, CNTL1), Write
    Strobe (WR, CNTL0), and Slave_CS.
    
    
    
    
    
    


    


    

    相關(guān)PDF資料
    		

    PDF描述
    		

    
    

    
PSD934490JIT
CRYSTAL 9.216MHZ SERIES HC-49/UA

    

    
PSD8144V12JIT
Flash In-System Programmable ISP Peripherals For 8-bit MCUs

    

    
PSD9144V12JIT
Flash In-System Programmable ISP Peripherals For 8-bit MCUs

    

    
PSD8344V12JIT
Flash In-System Programmable ISP Peripherals For 8-bit MCUs

    

    
PSD9344V12JIT
Flash In-System Programmable ISP Peripherals For 8-bit MCUs

    

    

    

    


    


    

    相關(guān)代理商/技術(shù)參數(shù)
    		

    參數(shù)描述
    		

    
    

    
PSD834F2-15M
 制造商:STMicroelectronics 功能描述:Flash In-System Programmable Peripherals 52-Pin PQFP

    

    
PSD834F2-70J
功能描述:CPLD - 復(fù)雜可編程邏輯器件 5.0V 2M 70ns

 RoHS:否 制造商:Lattice 系列: 存儲(chǔ)類型:EEPROM 大電池?cái)?shù)量:128 最大工作頻率:333 MHz 延遲時(shí)間:2.7 ns 可編程輸入/輸出端數(shù)量:64 工作電源電壓:3.3 V 最大工作溫度:+ 90 C 最小工作溫度:0 C 封裝 / 箱體:TQFP-100

    

    
PSD834F2-70M
功能描述:SPLD - 簡(jiǎn)單可編程邏輯器件 5.0V 2M 70ns 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

    

    
PSD834F2-90J
功能描述:CPLD - 復(fù)雜可編程邏輯器件 5.0V 2M 90ns

 RoHS:否 制造商:Lattice 系列: 存儲(chǔ)類型:EEPROM 大電池?cái)?shù)量:128 最大工作頻率:333 MHz 延遲時(shí)間:2.7 ns 可編程輸入/輸出端數(shù)量:64 工作電源電壓:3.3 V 最大工作溫度:+ 90 C 最小工作溫度:0 C 封裝 / 箱體:TQFP-100

    

    
PSD834F2-90JI
功能描述:CPLD - 復(fù)雜可編程邏輯器件 5.0V 2M 90ns

 RoHS:否 制造商:Lattice 系列: 存儲(chǔ)類型:EEPROM 大電池?cái)?shù)量:128 最大工作頻率:333 MHz 延遲時(shí)間:2.7 ns 可編程輸入/輸出端數(shù)量:64 工作電源電壓:3.3 V 最大工作溫度:+ 90 C 最小工作溫度:0 C 封裝 / 箱體:TQFP-100

    

    
    
    
    
	
    	
    
    
     
     
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