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FW323061394 Fiches technique(PDF) 11 Page - Agere Systems |
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FW323061394 Fiches technique(HTML) 11 Page - Agere Systems |
11 / 92 page Agere Systems Inc. 11 Data Sheet, Rev. 1 FW323 06 1394a December 2005 PCI PHY/Link Open Host Controller Interface FW323 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. RX TX LINK CONTROL STATE MACHINE CRC DATAMUX ISOCH CONTROL TIMER ADDRESS DECODER INTERFACE CONTROL AR FIFO AT FIFO IR FIFO IT FIFO PHY - LINK INTERFACE PHYDATA PHYCTL PHYLREQ PCI SLAVE |
Numéro de pièce similaire - FW323061394 |
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