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      參數(shù)資料
      型號: PSD853F3-12
      廠商: 意法半導(dǎo)體
      英文描述: Flash In-System Programmable (ISP) Peripherals for 8-bit MCUs, 5V
      中文描述: Flash在系統(tǒng)可編程(ISP)的周邊8位MCU,5V的
      文件頁數(shù): 40/110頁
      文件大?。?/td> 1737K
      代理商: PSD853F3-12
      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
      PSD853F3-15 Flash In-System Programmable (ISP) Peripherals for 8-bit MCUs, 5V
      PSD853F3-20 Flash In-System Programmable (ISP) Peripherals for 8-bit MCUs, 5V
      PSD853F3-70 Flash In-System Programmable (ISP) Peripherals for 8-bit MCUs, 5V
      PSD853F3-90 Flash In-System Programmable (ISP) Peripherals for 8-bit MCUs, 5V
      PSD853F3V-12 Flash In-System Programmable (ISP) Peripherals for 8-bit MCUs, 5V
      相關(guān)代理商/技術(shù)參數(shù)
      參數(shù)描述
      PSD854F2-15J 制造商:STMicroelectronics 功能描述:4556DIE2HR - Trays
      PSD854F2-70J 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: 存儲類型:EEPROM 大電池數(shù)量:128 最大工作頻率:333 MHz 延遲時間: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
      PSD854F2-70M 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: 存儲類型:EEPROM 大電池數(shù)量:128 最大工作頻率:333 MHz 延遲時間: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
      PSD854F2-90J 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: 存儲類型:EEPROM 大電池數(shù)量:128 最大工作頻率:333 MHz 延遲時間: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
      PSD854F2-90JI 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: 存儲類型:EEPROM 大電池數(shù)量:128 最大工作頻率:333 MHz 延遲時間: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