ATWINC1500 데이터 시트보기 (PDF) - Atmel Corporation

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ATWINC1500

Single Chip IEEE 802.11 b/g/n Network Controller SOC with Integrated Flash Memory

Atmel Corporation 

8. WLAN Subsystem

The WLAN subsystem is composed by the Media Access Controller (MAC) and the Physical Layer (PHY). The

following two subsections describe the MAC and PHY in detail.

8.1 MAC

8.1.1

Features

The Atmel WINC1500 IEEE802.11 MAC supports the following functions:

 IEEE 802.11b/g/n

 IEEE 802.11e WMM QoS EDCA/HCCA/PCF multiple access categories traffic scheduling

 Advanced IEEE 802.11n features:

̶ Transmission and reception of aggregated MPDUs (A-MPDU)

̶ Transmission and reception of aggregated MSDUs (A-MSDU)

̶ Immediate Block Acknowledgement

̶ Reduced Interframe Spacing (RIFS)

 Support for IEEE802.11i and WFA security with key management

̶ WEP 64/128

̶ WPA-TKIP

̶ 128-bit WPA2 CCMP (AES)

 Support for WAPI security

 Advanced power management

̶ Standard 802.11 Power Save Mode

̶ Wi-Fi Alliance WMM-PS (U-APSD)

̶ PSMP

 RTS-CTS and CTS-self support

 Supports either STA or AP mode in the infrastructure basic service set mode

 Supports independent basic service set (IBSS)

 Built-in programmable processor for future enhancement and standards evolution

 Auto-rate control

 MIB management

8.1.2

Description

The Atmel WINC1500 MAC is designed to operate at low power while providing high data throughput. The IEEE

802.11 MAC functions are implemented with a combination of dedicated datapath engines, hardwired control

logic, and a low-power, high-efficiency microprocessor. The combination of dedicated logic with a

programmable processor provides optimal power efficiency and real-time response while providing the flexibility

to accommodate evolving standards and future feature enhancements.

Dedicated datapath engines are used to implement data path functions with heavy computational. For example,

an FCS engine checks the CRC of the transmitting and receiving packets, and a cipher engine performs all the

required encryption and decryption operations for the WEP, WPA-TKIP, WPA2 CCMP-AES, and WAPI security

requirements.

Atmel ATWILC1500A [PRELIMINARY DATASHEET]

11

Atmel-42353A-WINC1500-SmartConnect-Datasheet_092014

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