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FW322061394 Folha de dados(PDF) 11 Page - Agere Systems |
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FW322061394 Folha de dados(HTML) 11 Page - Agere Systems |
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11 / 92 page  Agere Systems Inc. 11 Data Sheet, Rev. 1 FW322 06 1394a December 2005 PCI PHY/Link Open Host Controller Interface FW322 Functional Description (continued) Figure 4. Link Core Block Diagram Link Core The link core shown in Figure 4 consists of the following blocks: Link Control State Machine: main link state machine that controls all other link core modules. Transmit (TX): reads from the AT and IT FIFOs and forms 1394 packets for transmit. Receive (RX): pipes incoming 1394 packet data to appropriate FIFO (if any). Address Decoder: decodes the destination ID of an incoming 1394 packet to determine if an acknowledge is needed. CRC: calculates and checks CRC on outgoing and incoming packets. Isochronous Control Timer: contains the logic for the 1394 cycle timer. DataMUX: pipes 1394 data to and from various modules. Interface Control: contains interrupt and registers for the link core. Interfaces with the slave control block of the PCI core. PHY-Link Interface: interfaces with the 1394 physical layer. LINK CONTROL STATE MACHINE ISOCH CONTROL TIMER AR FIFO AT FIFO IR FIFO IT FIFO PHYDATA PHYCTL PHYLREQ PCI SLAVE PHY-LINK INTERFACE DATAMUX CRC INTERFACE CONTROL RX ADDRESS DECODER TX |
Nº de peça semelhante - FW322061394 |
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Descrição semelhante - FW322061394 |
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