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HFA3842

Intersil Corporation
Part Number HFA3842
Manufacturer Intersil Corporation
Description Wireless LAN Medium Access Controller
Published Jul 28, 2014
Detailed Description HFA3842 TM Data Sheet June 2001 File Number 4839.2 Wireless LAN Medium Access Controller The Intersil HFA3842 Wirel...
Datasheet PDF File HFA3842 PDF File

HFA3842
HFA3842

Overview
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.
It supports BSS and IBSS operation under DCF, and operation under the optional Point Coordination Function (PCF).
Low level protocol functions such as RTS/CTS generation and acknowledgement, fragmentation and de-fragmentation, and automatic beacon monitoring are handed without host intervention.
Active scanning is performed autonomously once initiated by host command.
Host interface command and status handshakes allow concurrent operations from multi-threaded I/O drivers.
Additional firmware functions specific to access point applications are also available.
Designing wireless protocol systems using the HFA3842 is made easier with the availability of evaluation board, firmware, software device drivers, and complete documentation.
The HFA3842 is a WLAN MAC Controller IC, based on the HFA3841.
Pin-for-pin upgrade replacement for the HFA3841.
• Part of the Intersil PRISM Wireless LAN Chip Set • Full Implementation of the MAC Protocol Specified in IEEE Standards 802.
11-1999 and 802.
11b • PCMCIA Host Interface Supports Full 16-Bit Implementation of PC Card 16 (1995), also ISA PNP with Additional Chip • Host Interface Provides Dual Buffer Access Paths • External Memory Interface Supports up to 4M bytes RAM • Internal Encryption Engine Executes IEEE802.
11 WEP • Low Power Operation;...


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