PDF AM79C930 Data sheet ( Hoja de datos )

Número de pieza	AM79C930
Descripción	PCnet-Mobile Single-Chip Wireless LAN Media Access Controller
Fabricantes	Advanced Micro Devices
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PRELIMINARY Am79C930 PCnet™-Mobile Single-Chip Wireless LAN Media Access Controller DISTINCTIVE CHARACTERISTICS s Capable of supporting the IEEE 802.11 standard (draft) s Supports the Xircom Netwave™ media access www.DataSheet4U.comcontrol (MAC) protocols s Supports MAC layer functions s Individual 8-byte transmit and 15-byte receive FIFOs s Integrated intelligent 80188 processor for MAC layer functions s Glueless PCMCIA bus interface conforming to PC Card standard—Feb. 1995 s Full PCMCIA software interface support for PC Card standard—Feb. 1995 s Glueless ISA (IEEE P996) bus interface with full support for Plug and Play release 1.0a s Glueless SRAM interface for MAC operations, supporting up to 128 Kbytes of memory s Glueless Flash memory interface, supporting up to 128 Kbytes of non-volatile memory for MAC control code, PCMCIA conﬁguration parameters, and ISA Plug and Play conﬁguration parameters s Provides integrated Transceiver Attachment Interface (TAI), supporting Frequency-Hopping Spread Spectrum, Direct Sequence Spread Spectrum, and infrared physical-layer interfaces s Antenna diversity selection support s Fabricated with submicron CMOS technology with low operating current s Supports dual 3 V and 5 V supply applications s Low-power mode allows reduced power consumption for critical battery-powered applications s 144-pin Thin Quad Flat Pack (TQFP) package available for space-critical applications, such as PCMCIA s JTAG Boundary Scan (IEEE 1149.1) test access port for board-level production test GENERAL DESCRIPTION PCnet-Mobile (Am79C930) is the ﬁrst in a series of mo- bile networking products in AMD’s PCnet family. The Am79C930 device is the ﬁrst single-chip wireless LAN media access controller (MAC) supporting the IEEE 802.11 (draft) standard and the Xircom Netwave™ MAC protocols. The Am79C930 device is designed to have a ﬂexible protocol engine to allow for industry standard and proprietary protocols. Protocol ﬁrmware for Xircom Netwave and IEEE 802.11 (draft) MAC pro- tocols are supplied by AMD. It is pin-compatible with the PCMCIA bus or the ISA (Plug and Play) bus through a pin-strapping option. The Am79C930 device contains a PCMCIA/ISA bus interface unit (BIU), a MAC control unit, and a transceiver attachment interface (TAI). The TAI sup- ports frequency-hopping spread spectrum, direct sequence spread spectrum, and infrared physical layer interfaces. In addition, a power down function has been incorporated to provide low standby current for power- sensitive applications. The Am79C930 device provides users with a media ac- cess controller that has ﬂexibility (i.e., bus interface, protocol, and physical layer support) to allow the design of multiple products using a single device. By having all the necessary MAC functions on a single chip, users only need to add memory and the physical layer in order to deliver a fully functional wireless LAN connection. Publication# 20183 Rev: B Amendment/0 Issue Date: April 1997 This document contains information on a product under development at Advanced Micro Devices. The information is intended to help you evaluate this product. AMD reserves the right to change or discontinue work on this proposed product without notice. 1 1 page PRELIMINARY BLOCK DIAGRAM Transceiver Attachment Interface Unit IRQ MD[7:0] www.DataSheet4U.com TAICE Slave Control MA[4:0] DRQ[1:0] RXCSEL RXCIN RESET CLKIN Interrupt Generator Transceiver Interface Unit Control Transceiver Control Signals TIR0 TIR... TIR31 TCR0 TCR... TCR31 TX FIFO 8 Bytes RX FIFO 15 Bytes Slave Control Memory Interface Bus I/O and DMA DPLL C M U X P->S S->P MUX C R C SFD Detect MUX C R C Count Phylen ÷80 BIAS ÷40 M Suppress ÷5 ÷10 U X Sleep ÷20 FDET RXD TXD TXC RXC 20183B-3 Am79C930 5 5 Page PRELIMINARY AMD www.DataSheet4U.com TCR24: RSSI Sample Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 TCR25: RSSI Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 TCR26: Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119 TCR27: TIP LED Scramble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 TCR28: Clear Channel Assessment Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 TCR29: Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 TCR30: Pin Function and Data Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 TCR31: Device Revision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 PCMCIA CCR Registers and PCMCIA CIS Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 PCMCIA Card Configuration and Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 PCMCIA Card Information Structure (CIS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 OPERATING RANGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 DC CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 5.0 V Am79C930 DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 3.3 V Am79C930 DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 IEEE 1149.1 DC Characteristics (5.0 and 3.3 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 OPERATING RANGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 AC CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 5.0 and 3.3 V PCMCIA Interface AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 PCMCIA MEMORY READ ACCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 PCMCIA MEMORY WRITE ACCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 PCMCIA I/O READ ACCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 PCMCIA I/O WRITE ACCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 5.0 AND 3.3 V ISA INTERFACE AC CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135 ISA ACCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 5.0 V MEMORY BUS INTERFACE AC CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 MEMORY BUS READ ACCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 MEMORY BUS WRITE ACCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138 3.3 V MEMORY BUS INTERFACE AC CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 MEMORY BUS READ ACCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 MEMORY BUS WRITE ACCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 5.0 V TAI INTERFACE AC CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 3.3 V TAI INTERFACE AC CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144 5.0 AND 3.3 V USER PROGRAMMABLE PINS AC CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . 146 5.0 AND 3.3 V IEEE 1149.1 INTERFACE AC CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 ANALOG-TO-DIGITAL (A/D) CONVERTER CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 Am79C930 11 11 Page

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Hoja de datos destacado

Número de pieza	Descripción	Fabricantes
AM79C930	PCnet-Mobile Single-Chip Wireless LAN Media Access Controller	Advanced Micro Devices

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