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BCM4354 데이터시트(PDF) 76 Page - Cypress Semiconductor

부품명 BCM4354
상세설명  Single-Chip 5G Wi-Fi IEEE 802.11ac 2횞2 MAC/ Baseband/Radio with Integrated Bluetooth 4.1 and FM Receiver
PDF  192 Pages
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BCM4354 데이터시트(HTML) 76 Page - Cypress Semiconductor

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Wireless LAN MAC and PHY
BCM4354 Data Sheet
BROADCOM CONFIDENTIAL
Broadcom®
October 15, 2014 • 4354-DS109-R
Page 75
Section 11: Wireless LAN MAC and PHY
IEEE 802.11ac Draft MAC
The BCM4354 WLAN MAC is designed to support high-throughput operation with low-power consumption. It
does so without compromising the Bluetooth coexistence policies, thereby enabling optimal performance over
both networks. In addition, several power saving modes have been implemented that allow the MAC to consume
very little power while maintaining network-wide timing synchronization. The architecture diagram of the MAC
is shown in Figure 30.
The following sections provide an overview of the important modules in the MAC.
Figure 30: WLAN MAC Architecture
Embedded CPU Interface
Host Registers, DMA Engines
TX-FIFO
32 KB
WEP
TKIP, AES, WAPI
TXE
TX A-MPDU
RXE
PMQ
PSM
Shared Memory
6 KB
PSM
UCODE
Memory
EXT- IHR
IFS
Backoff, BTCX
TSF
NAV
IHR
BUS
SHM
BUS
MAC-PHY Interface
RX-FIFO
10 KB
RX A-MPDU



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