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HFA3842B - PCMCIA/USB Wireless LAN Medium Access Controller

Description

HOST INTERFACE PINS PIN NAME PIN NUMBER PIN I/O TYPE HA0-9 106-113, 117, 118 5V Tol, CMOS, Input, 50K Pull Down HCE1- 1 5V Tol, CMOS, Input, 50K Pull Up HCE2- 122 5V Tol, CMOS, Input, 50K Pull Up HD0-15 101-99, 6-2, 96-94, 128-125, 123 5V Tol, BiDir, 2mA, 50K Pull Down HINPACK- 103 C

Features

  • USB Host Interface supports USB V1.1 at 12Mbps, and is an alternative to the PC Card host interface.
  • New start up modes allow the PCMCIA Card Information Structure to be initialized from a serial EEPROM. This allows firmware to be downloaded from the host, eliminating the parallel Flash memory device.
  • Firmware can be loaded from serial Flash memory.
  • Direct attachment to a typical x16 SRAM using five control signals (RAMCS_, MOE_, MWEL_, MLBE_, and MUBE_).

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Full PDF Text Transcription

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TM PRELIMINARY Data Sheet HFA3842B June 2001 File Number 8020 PCMCIA/USB Wireless LAN Medium Access Controller The Intersil HFA3842B Wireless LAN Medium Access Controller is part of the PRISM® 2.4GHz radio chip set. The HFA3842B directly interfaces with the Intersil HFA386x family of Baseband Processors, offering a complete end-to-end chip set solution for wireless LAN products. Protocol and PHY support are implemented in firmware to allow custom protocol and different PHY transceivers. The HFA3842B is designed to provide maximum performance with minimum power consumption. Package pin layout provides optimal PC board layout to all user interfaces including PCMCIA and USB. Firmware implements the full IEEE 802.11 Wireless LAN MAC protocol.
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