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Part: AM79C930
Category:
Communication
-> Wireless
-> Block Function
Description: Pcnet(tm)-mobile Single-chip Wireless Lan Media Access Controller
Company: Advanced Micro Systems, Inc.
Datasheet: Download AM79C930 datasheet File size : 1108 kB
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Datasheet text preview:
PRELIMINARY
Am79C930
PCnetTM-Mobile Single-Chip Wireless LAN Media Access Controller
DISTINCTIVE CHARACTERISTICS
s Capable of supporting the IEEE 802.11 standard (draft) s Supports the Xircom NetwaveTM media access control (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 mobile 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 NetwaveTM 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 protocols are supplied by AMD. It is pin-compatible with t h e PCMCIA bus or the ISA (Plug and Play) bus through a pin-strapping option. The Am79C930 device contains a PCMCIA/ISA bus i n t e r fa c e unit (BIU), a MAC control unit, and a transceiver attachment interface (TAI). The TAI supp o r t s 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 powersensitive applications. The Am79C930 device provides users with a media access controller that has flexibility (i.e., bus interface, p r o t o c o l , 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
PRELIMINARY
ORDERING INFORMATION Standard Products
AMD standard products are available in several packages and operating ranges. The order number (valid combination) is formed by a combination of the elements below.
AM79C930
V
C
\W
OPTIONAL PROCESSING \W = Trimmed and Formed in a Tray
OPERATING CONDITIONS C = Commercial (0°C to +70°C)
PACKAGE TYPE V = 144-Pin Thin Quad Flat Pack (PQT144)
SPEED Not Applicable DEVICE NUMBER/DESCRIPTION Am79C930 Single-Chip Wireless LAN Media Access Controller
Valid Combinations Am79C930 VC\W
Valid Combinations Valid combinations list configurations planned to be suppor ted in volume for this device. Consult the local AMD sales office to confirm availability of specific valid combinations and to check on newly released combinations.
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Am79C930
PRELIMINARY
BLOCK DIAGRAM PCMCIA Mode
MOE MWE MA 160 MD 70
JTAG Control Block
TRST TMS/T3 TDI/T1 TDO/T2
RXCIN ANTSLT XCE SCE FCE ANTSLT SAR60 ADIN21 ADREF RXDATA RXC USER60 A140 D70 REG CE1 OE IORD IOWR RESET WE WAIT INPACK IREQ STSCHG PMX21 UCS LCS RESET Bus Interface Unit (PCMCIA) CA168 CAD 70 INT1 ALE MAC Control Unit (80188 core) DRQ0 DRQ1 INT0 Transceiver Attachment Interface SDCLK SDDATA SDSEL31 TXCMD TXCMD TXMOD TXDATA TXDATA RXPE TXPE HFPE HFCLK LFPE LFCLK FDET LNK ACT CLKIN TEST PWRDWN
20183B-1
WR SRDY
Am79C930
3
PRELIMINARY
BLOCK DIAGRAM Bus Interface Unit
MD[7:0] MA[16:0]
IREQ A140 or LA2317, SA160 D70
System Interrupt Generator Address Buffer Data Buffer Bus Multiplexer
CA16 Latch ALE CA158 CAD70
SIR0 SIR1 ... SIR7 Slave Control PCMCIA and ISA Memory and I/O PCMCIA Config Registers Plug and Play Control Module 80188 Interrupt Generator
MIR0 MIR1 ... MIR15 MOE Slave Control and Arbitration for Memory Interface Bus MWE UCS LCS SRDY XCE FCE TAICE SCE INT1 RESET
PCMCIA or ISA Control Signals
ISA Memory Base ISA I/O Base
CLKIN
20183B-2
4
Am79C930
PRELIMINARY
BLOCK DIAGRAM Transceiver Attachment Interface Unit
IRQ
Interrupt Generator
Transceiver Interface Unit Control
Transceiver Control Signals
MD[7:0] TIR0 TIR... TIR31 TCR0 TCR... TCR31
TX FIFO 8 Bytes
RX FIFO 15 Bytes
P->S TAICE Slave Control MA[4:0] DRQ[1:0] RXCSEL RXCIN DPLL C M U X MUX Empty MUX
S->P
Slave Control Memory Interface Bus I/O and DMA
C R C
C R C SFD Detect Count Phylen RXD FDET
RESET
÷80 ÷40 ÷5 ÷10 ÷20
M U X
BIAS Suppress Sleep
TXD TXC
RXC CLKIN
20183B-3
Am79C930
5
Others parts begin by am
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