HFA3842B - Intersil Corporation

HFA3842B PCMCIA/USB Wireless LAN Medium Access Controller

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 CMOS Output, 2mA HIORD- 120 5V Tol, CMOS, Input, 50K Pull U.

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