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TI380FPAAFNLR Datasheet(PDF) 1 Page - Texas Instruments |
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TI380FPAAFNLR Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 24 page  TI380FPAA PACKETBLASTER ™ SPWS038 – MAY 1997 1 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 D Frame-Processing Accelerator for TI380C2x and TI380C3x D Supports TI380C2x and TI380C3x Token-Ring Adapters D Supports TI380C2x Ethernet™ Adapters D Supports 4- or 6-MHz Adapter Local Bus Operation D Interfaces Directly to TI380C2x Network Commprocessors ™ D Hardware Capture of Network Statistics D Increases Adapter Frame-Processing Rate to up to 28K Frames per Second D Single 5-V Supply D 0.8-µm CMOS Technology D 52-Pin Plastic Leaded Chip Carrier (FN) D Operating Temperature Range 0 °C to 70°C description The TI380FPAA frame-processing accelerator (FPA) provides hardware to accelerate the processing rate of frames by the network communications processor (commprocessor). It supports a 4-MHz or 6-MHz adapter local-bus operation. The CPU of a normal TI380C2x or TI380C3x adapter is responsible for frame transport between network and host, gathering of adapter and network statistics, local network management protocols, and medium-access-control (MAC) protocols. The TI380FPAA puts the performance bottlenecks of frame transport and statistics-gathering into dedicated hardware, leaving the CPU to run MAC and management protocols. It is a drop-in replacement for the TI380FPA device. The TI380FPAA is responsible for: D Managing all commprocessor protocol handler (PH) operations. The FPA manages all receive- and transmit-frame queues. D Managing adapter buffers. The FPA manages all adapter memory buffers, allocating them to the appropriate queues as required. D Managing host direct memory access (DMA) by way of the commprocessor system interface (SIF) DMA controller. D Managing frame transfers to the host. The FPA manages queues of frames to and from the host, manages rx/tx list information, and coordinates the two. D Gathering adapter and network statistics in dedicated hardware counters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. FN PACKAGE ( TOP VIEW ) MADH0 MADH1 MADH2 VSSL VSS MADH3 VSSC MADH4 VDD VDDL MADH5 MADH6 MADH7 PLLVDD PLLCAP PLLVSS MBCLK1 NC MRESET VSSL MANT0 MANT1 MBGR VDDL EXTINT0 MBRQ 8 9 10 11 12 13 14 15 16 17 18 19 20 46 45 44 43 42 41 40 39 38 37 36 35 34 7654 321 52 51 50 49 48 47 21 22 23 24 25 26 27 28 29 30 31 32 33 ADVANCE INFORMATION concerns new products in the sampling or preproduction phase of development. Characteristic data and other specifications are subject to change without notice. Copyright © 1997, Texas Instruments Incorporated PacketBlaster and Commprocessor are trademarks of Texas Instruments Incorporated. Ethernet is a registered trademark of Xerox Corporation. |
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