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HFA3842 - Wireless LAN Medium Access Controller

Description

HOST INTERFACE PINS PIN NAME HA0-9 HCE1HCE2HD0-15 PIN NUMBER PIN I/O TYPE DESCRIPTION PC Card Address Input, Bits 0 to 9 PC Card Select, Low Byte PC Card Select, High Byte PC Card Data Bus, Bit 0 to 15 106-113, 117, 118 5V Tol, CMOS, Input, 50K Pull Down 1 122 101-99, 6-2, 96-94, 128-125, 123 103

Features

  • 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_).
  • Low frequency crystal oscillator to maintain time and allow baseband clock source to power off during.

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Full PDF Text Transcription

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HFA3842 TM Data Sheet June 2001 File Number 4839.2 Wireless LAN Medium Access Controller The Intersil HFA3842 Wireless LAN Medium Access Controller is part of the PRISM® 2.4GHz radio chip set. The HFA3842 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 HFA3842 is designed to provide maximum performance with minimum power consumption. Package pin layout provides optimal PC board layout to all user interfaces. Firmware implements the full IEEE 802.11 Wireless LAN MAC protocol.
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