Preliminary Data Sheet
6/30/09
BCM4325
IEEE 802.11a/g PHY Description............................................................................................................... 28
Section 10: WLAN 802.11 Radio Subsystem...................................................................30
Receiver Path ............................................................................................................................................. 31
Transmitter Path......................................................................................................................................... 31
Calibration .................................................................................................................................................. 31
Section 11: WLAN Power Management ...........................................................................32
Section 12: WLAN System Interfaces ..............................................................................33
SDIO V1.2.................................................................................................................................................... 33
GPIO Interface ............................................................................................................................................ 33
One-Time-Programmable (OTP) Memory................................................................................................. 33
External Coexistence Interface................................................................................................................. 34
JTAG Interface............................................................................................................................................ 34
WLAN UART Debug Interface ................................................................................................................... 34
Section 13: Software Architecture ...................................................................................35
Host Software Architecture....................................................................................................................... 35
Device Software Architecture ................................................................................................................... 35
Remote Downloader ............................................................................................................................. 36
Wireless Configuration Utility................................................................................................................... 36
Section 14: Pinout and Signal Descriptions....................................................................37
Signal Assignments................................................................................................................................... 37
196-Ball FBGA Pinout........................................................................................................................... 37
339-Pin WLCSP Pinout......................................................................................................................... 39
Section 15: Signal Descriptions .......................................................................................43
196-Ball FBGA Package....................................................................................................................... 43
339-Pin WLCSP Package..................................................................................................................... 52
Pin Voltage Domains ............................................................................................................................ 64
WLAN GPIO Signals and Strapping Options ........................................................................................ 67
Bluetooth GPIO Signals ........................................................................................................................ 68
Pin Default Pull-Up/Pull-Down .............................................................................................................. 69
Interface I/O Status............................................................................................................................... 71
SDIO Pin Description................................................................................................................................. 74
Broadcom Corporation
Document 4325-DS04-R
Page ix
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