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      參數(shù)資料
      

      


      


      
型號(hào)：
PSD913470MT

      

      
廠商：
意法半導(dǎo)體

      

      
英文描述：
Registered Hex TTL/ECL Translator; Package: 28 LEAD PLCC; No of Pins: 28; Container: Tape and Reel; Qty per Container: 500

      

      
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(yè)數(shù)：
40/110頁(yè)

      

      
文件大小：
1737K

      

      
代理商：
PSD913470MT


      

      

      

	
      
    
    

    
      
	
      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
      		

      
      

      
PSD913490JIT
Flash In-System Programmable ISP Peripherals For 8-bit MCUs

      

      
PSD913490JT
Flash In-System Programmable ISP Peripherals For 8-bit MCUs

      

      
PSD913490MIT
Flash In-System Programmable ISP Peripherals For 8-bit MCUs

      

      
PSD913490MT
Flash In-System Programmable ISP Peripherals For 8-bit MCUs

      

      
PSD9134V15JT
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
      		

      
      

      
PSD913490JIT
 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs

      

      
PSD913490JT
 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs

      

      
PSD913490MIT
 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs

      

      
PSD913490MT
 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs

      

      
PSD9134V12JIT
 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs

      

      
    
    
    
	
      	
    
    
     
     
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