HFA3842 - Intersil Corporation

HFA3842 Wireless LAN Medium Access Controller

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, 123 103 120 119 114 121 102 16 36 104 116 5V Tol, CMOS, Input, 50K P.

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 sleep mode.
• Improved performance of internal WEP engine.
• On-chip execution can now be viewed while in debug mode.
• Independent.