• <nobr id="mf31s"><fieldset id="mf31s"><form id="mf31s"></form></fieldset></nobr>
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    參數(shù)資料
    

    


    


    
型號(hào)：
PSD303V-70JM

    

    
廠商：
意法半導(dǎo)體

    

    
元件分類：
圓形連接器

    

    
英文描述：
Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT01; No. of Contacts:5; Connector Shell Size:14; Connecting Termination:Solder; Circular Shell Style:Cable Receptacle; Body Style:Straight

    

    
中文描述：
低成本現(xiàn)場(chǎng)可編程微控制器外圍設(shè)備

    

    
文件頁(yè)數(shù)：
19/85頁(yè)

    

    
文件大?。?/td>
691K

    

    
代理商：
PSD303V-70JM


    

    

    

	
    
    
    

    
    
	
    PSD3XX Famly
    16
    10.0
    I/OPort
    Functions
    (
    cont.)
    10.2 Port A (PA0-PA7)
    The control registers of Port A are located in CSIOPORT space; see Table 5.
    10.2.1 Port A (PA0-PA7) in Multiplexed Address/Data Mode
    Each pin of Port A can be individually configured. The following table summarizes what the 
    control registers (in CSIOPORT space) for Port A do:
    NOTE:
     1. Default value is the value after reset.
    Default
    Value
    (Note 1)
    Register Name
    0 Value
    1 Value
    Port A Pin Register
    Sampled logic level
    at pin = ‘0’
    Pin is configured
    as input
    Data in DFF = ‘0’
    Sampled logic level
    at pin = ‘1’
    Pin is configured
    as output
    Data in DFF = ‘1’
    X
    Port A Direction Register
    0
    Port A Data Register
    0
    MCUI/OMode
    The default configuration of Port A is MCU I/O. In this mode, every pin can be set (at run-
    time) as an input or output by writing to the respective pin’s direction flip-flop (DIR FF,
    Figure 5A). As an output, the pin level can be controlled by writing to the respective pin’s
    data flip-flop (DFF, Figure 5A). The Pin Register can be read to determine logic level of the
    pin. The contents of the Pin Register indicate the true state of the PSD driving the pin
    through the DFF or an external source driving the pin. Pins can be configured as CMOS 
    or open-drain using 
    ST
    ’s PSDsoft software. Open-drain pins require external pull-up 
    resistors.
    Latched Address Output Mode
    Alternatively, any bit(s) of Port A can be configured to output low-order demultiplexed
    address bus bit. The address is provided by the internal PSD address latch, which latches
    the address on the trailing edge of ALE/AS. Port A then outputs the desired demultiplexed
    address bits. This feature can eliminate the need for an external latch (for example:
    74LS373) if you have devices that require low-order latched address bits. Although any pin
    of Port A may output an address signal, the pin is position-dependent. In other words, pin
    PA0 of Port A may only pass A0, PA1 only A1, and so on. 
    Track Mode
    Track Mode sets the entire port to track the signals on AD0/A0-AD7/A7, depending on
    specific address ranges defined by the PAD’s CSADIN, CSADOUT1, and CSADOUT2
    signals. This feature lets the user interface the microcontroller to shared external resources
    without requiring external buffers and decoders. In Track Mode, Port A effectively operates
    as a bi-directional buffer, allowing external MCUs or host processors to access the local
    data bus. Keep the following information in mind when setting up Track Mode:
    J
     The direction is controlled by:
     ALE/AS
     RD/E or RD/E/DS (DS on non-3X1 devices only) 
     WR or R/W
     PAD outputs CSADOUT1, CSADOUT2, and CSADIN defined in PSDsoft design.
    J
     When CSADOUT1 and ALE/AS are true, the address on AD0/A0-AD7/A7 is output on 
    Port A. Note: carefully check the generation of CSADOUT1 to ensure that it is stable 
    during the ALE/AS pulse.
    J
     When CSADOUT2 is active and a write operation is performed, the data on the 
    AD0/A0-AD7/A7 input pins flows out through Port A.
    J
     When CSADIN is active and a read operation is performed, the data on Port A flows 
    out through the AD0/A0-AD7/A7 pins.
    J
     Port A is tri-stated when none of the above conditions exist.
    
    
    
    
    
    


    


    

    相關(guān)PDF資料
    		

    PDF描述
    		

    
    

    
PSD303V-90J
PT 5C 5#16 PIN RECP

    

    
PSD303V-90JI
Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT01; No. of Contacts:5; Connector Shell Size:14; Connecting Termination:Solder; Circular Shell Style:Cable Receptacle; Body Style:Straight

    

    
PSD312V-15J
Shielded Paired Cable; Number of Conductors:6; Conductor Size AWG:22; Jacket Material:Polyvinylchloride (PVC); Number of Pairs:3; Leaded Process Compatible:Yes; Voltage Nom.:300V RoHS Compliant: Yes

    

    
PSD312V-15JI
Shielded Paired Cable; Number of Conductors:8; Conductor Size AWG:22; No. Strands x Strand Size:7 x 30; Jacket Material:Polyvinylchloride (PVC); Shielding Material:Aluminum Foil/Polyester Tape; Shielding Coverage:100% RoHS Compliant: Yes

    

    
PSD312V-15JM
Shielded Paired Cable; Number of Conductors:30; Conductor Size AWG:24; No. Strands x Strand Size:7 x 32; Jacket Material:Polyvinylchloride (PVC); Number of Pairs:15; Impedance:75ohm; Leaded Process Compatible:Yes; Voltage Nom.:300V RoHS Compliant: Yes

    

    

    

    


    


    

    相關(guān)代理商/技術(shù)參數(shù)
    		

    參數(shù)描述
    		

    
    

    
PSD303V-90J
 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals

    

    
PSD303V-90JI
 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals

    

    
PSD303V-90JM
 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals

    

    
PSD303V-A-15J
 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals

    

    
PSD303V-A-15JI
 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals

    

    
    
    
    
	
    	
    
    
     
     
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