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    參數(shù)資料
    

    


    


    
型號：
XR16V798IQ-0A-EVB

    

    
廠商：
Exar Corporation

    

    
文件頁數(shù)：
23/56頁

    

    
文件大?。?/td>
0K

    

    
描述：
EVAL BOARD FOR XR16V798-A 100QFP

    

    
設(shè)計資源：
XR17V798/794 Eval Board Schematic
    		

    

    
標準包裝：
1

    

    
系列：
*

    

    

    

	
    
    
    

    
    
	
    XR16V798
    3
    REV. 1.0.1
    HIGH PERFORMANCE 2.25V TO 3.6V OCTAL UART WITH FRACTIONAL BAUD RATE
    PIN DESCRIPTIONS
    NAME
    PIN #
    TYPE
    DESCRIPTION
    DATA BUS INTERFACE
    A7:A0
    20-27
    I
    Address lines [7:0]. A0:A3 selects individual UART’s 16 configuration registers,
    A4:A6 selects UART channel 0 to7, and A7 selects the global device configuration
    registers.
    D7:D0
    5-12
    IO
    Data bus lines [7:0] (bidirectional).
    IOR#
    19
    I
    When 16/68# pin is HIGH, it selects Intel bus interface and this input is read strobe
    (active LOW). The falling edge instigates an internal read cycle and retrieves the
    data byte from an internal register pointed by the address lines [A7:A0], places it on
    the data bus to allow the host processor to read it on the leading edge.
    When 16/68# pin is LOW, it selects Motorola bus interface and this input should be
    connected to VCC.
    IOW#
    (R/W#)
    13
    I
    When 16/68# pin is HIGH, it selects Intel bus interface and this input becomes write
    strobe (active LOW). The falling edge instigates the internal write cycle and the
    leading edge transfers the data byte on the data bus to an internal register pointed
    by the address lines.
    When 16/68# pin is LOW, it selects Motorola bus interface and this input becomes
    read (HIGH) and write (LOW) signal (R/W#).
    CS#
    30
    I
    When 16/68# pin is HIGH, this input is chip select (active LOW) to enable the
    XR16V798 device.
    When 16/68# pin is LOW, this input becomes the read and write strobe (active
    LOW) for the Motorola bus interface.
    INT#
    16
    OD
    Global interrupt output from XR16V798 (open drain, active LOW). This output
    requires an external pull-up resistor (47K-100K ohms) to operate properly. It may be
    shared with other devices in the system to form a single interrupt line to the host pro-
    cessor and have the software driver polls each device for the interrupt status.
    MODEM OR SERIAL I/O INTERFACE
    TX0
    93
    O
    UART channel 0 Transmit Data or infrared transmit data.
    RX0
    100
    I
    UART channel 0 Receive Data or infrared receive data. Normal RXD input idles
    HIGH. The infrared pulse can be inverted internally prior to decoding by setting
    FCTR bit-4.
    RTS0#
    95
    O
    UART channel 0 Request to Send or general purpose output (active LOW). This
    port may be used for one of two functions:
    1) Auto hardware flow control, see EFR bit-6, MCR bits-1 & 2, FCTR bits 0-3 and
    IER bit-6
    2) RS485 half-duplex direction control, see FCTR bit-5, MCR bit-2 and MSR bits 4-
    7.
    CTS0#
    99
    I
    UART channel 0 Clear to Send or general purpose input (active LOW). It can be
    used for auto hardware flow control, see EFR bit-7, MCR bit-2 and IER bit-7.
    DTR0#
    94
    O
    UART channel 0 Data Terminal Ready or general purpose output (active LOW). This
    port may be used forone of two functions.
    1) auto hardware flow control, see EFR bit-6, FCTR bits-0 to 3, MCR bits-0 & 2, and
    IER bit-6
    2) RS485 half-duplex direction control, see FCTR bit-5, MCR bit-2 and MSR bit 4-7.
    DSR0#
    98
    I
    UART channel 0 Data Set Ready or general purpose input (active LOW). It can be
    used for auto hardware flow control, see EFR bit-7, MCR bit-2 and IER bit-7.
    CD0#
    97
    I
    UART channel 0 Carrier Detect or general purpose input (active LOW).
    RI0#
    96
    I
    UART channel 0 Ring Indicator or general purpose input (active LOW).
    
    
    
    
    
    


    


    

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    相關(guān)代理商/技術(shù)參數(shù)
    		

    參數(shù)描述
    		

    
    

    
XR16V798IQ-0B-EVB
功能描述:UART 接口集成電路 Supports V798 100 ld QFP,PCI Interface

 RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel

    

    
XR16V798IQ-F
功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel

    

    
XR16V798IQTR-F
 制造商:Exar Corporation 功能描述:UART 8-CH 64Byte FIFO 2.5V/3.3V 100-Pin PQFP T/R

    

    
XR-1790
 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Audio Schematic

    

    
XR17C152
 制造商:EXAR 制造商全稱:EXAR 功能描述:5V PCI BUS DUAL UART

    

    
    
    
    
	
    	
    
    
     
     
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