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    參數(shù)資料
    型號: OR2C10A-6BC208
    廠商: Electronic Theatre Controls, Inc.
    元件分類: FPGA
    英文描述: Field-Programmable Gate Arrays
    中文描述: 現(xiàn)場可編程門陣列
    文件頁數(shù): 140/192頁
    文件大?。?/td> 3148K
    代理商: OR2C10A-6BC208
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    Data Sheet
    June 1999
    ORCA Series 2 FPGAs
    Lucent Technologies Inc.
    51
    FPGA Configuration Modes (continued)
    Daisy Chain
    Multiple FPGAs can be configured by using a daisy
    chain of the FPGAs. Daisy chaining uses a lead FPGA
    and one or more FPGAs configured in slave serial
    mode. The lead FPGA can be configured in any mode
    except slave parallel mode. (Daisy chaining is not avail-
    able with the boundary-scan ram_w instruction, dis-
    cussed later.)
    All daisy-chained FPGAs are connected in series.
    Each FPGA reads and shifts the preamble and length
    count in on positive CCLK and out on negative CCLK
    edges.
    An upstream FPGA that has received the preamble
    and length count outputs a high on DOUT until it has
    received the appropriate number of data frames so that
    downstream FPGAs do not receive frame start bits
    (0s). After loading and retransmitting the preamble and
    length count to a daisy chain of slave devices, the lead
    device loads its configuration data frames. The loading
    of configuration data continues after the lead device
    has received its configuration data if its internal frame
    bit counter has not reached the length count. When the
    configuration RAM is full and the number of bits
    received is less than the length count field, the FPGA
    shifts any additional data out on DOUT.
    The configuration data is read into DIN of slave devices
    on the positive edge of CCLK, and shifted out DOUT
    on the negative edge of CCLK. Figure 46 shows the
    connections for loading multiple FPGAs in a daisy-
    chain configuration.
    The generation of CCLK for the daisy-chained devices
    which are in slave serial mode differs depending on the
    configuration mode of the lead device. A master paral-
    lel mode device uses its internal timing generator to
    produce an internal CCLK at eight times its memory
    address rate (RCLK). The asynchronous peripheral
    mode device outputs eight CCLKs for each write cycle.
    If the lead device is configured in either synchronous
    peripheral or a slave mode, CCLK is routed to the lead
    device and to all of the daisy-chained devices.
    The development system can create a composite
    configuration bit stream for configuring daisy-chained
    FPGAs. The frame format is a preamble, a length count
    for the total bit stream, multiple concatenated data
    frames, an end-of-configuration frame per device, a
    postamble, and an additional fill bit per device in the
    serial chain.
    As seen in Figure 46, the INIT pins for all of the FPGAs
    are connected together. This is required to guarantee
    that powerup and initialization will work correctly. In
    general, the DONE pins for all of the FPGAs are also
    connected together as shown to guarantee that all of
    the FPGAs enter the start-up state simultaneously. This
    may not be required, depending upon the start-up
    sequence desired.
    5-4488(F)
    Figure 46. Daisy-Chain Configuration Schematic
    VDD
    EPROM
    PROGRAM
    D[7:0]
    OE
    CE
    A[17:0]
    D[7:0]
    DONE
    M2
    M1
    M0
    DONE
    HDC
    LDC
    RCLK
    CCLK
    DOUT
    DIN
    DOUT
    DIN
    CCLK
    DONE
    DOUT
    INIT
    CCLK
    VDD
    VDD OR
    GND
    PRGM
    M2
    M1
    M0
    PRGM
    M2
    M1
    M0
    VDD
    HDC
    LDC
    RCLK
    HDC
    LDC
    RCLK
    VDD
    ORCA
    SERIES
    FPGA
    SLAVE #2
    ORCA
    SERIES
    FPGA
    MASTER
    ORCA
    SERIES
    FPGA
    SLAVE #1
    相關(guān)PDF資料
    PDF描述
    OR2C10A-6BC208I Field-Programmable Gate Arrays
    OR2C10A-6BC240 Field-Programmable Gate Arrays
    OR2C10A-6BC240I Field-Programmable Gate Arrays
    OR2C10A-6BC256 Field-Programmable Gate Arrays
    OR2C10A-6BC256I Field-Programmable Gate Arrays
    相關(guān)代理商/技術(shù)參數(shù)
    參數(shù)描述
    OR2C12A3BA256I-DB 功能描述:FPGA - 現(xiàn)場可編程門陣列 1296 LUT 288 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
    OR2C12A3BA352I-DB 功能描述:FPGA - 現(xiàn)場可編程門陣列 Use ECP/EC or XP RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
    OR2C12A3M84I-D 功能描述:FPGA - 現(xiàn)場可編程門陣列 1296 LUT 288 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
    OR2C12A3S208-DB 功能描述:FPGA - 現(xiàn)場可編程門陣列 1296 LUT 288 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
    OR2C12A3S208-DBA1357 制造商:Rochester Electronics LLC 功能描述:- Bulk