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BCM43903 Datasheet, PDF (13/87 Pages) Cypress Semiconductor – WICED™ IEEE 802.11 b/g/n SoC with an Embedded Applications Processor | |||
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BCM43903 Preliminary Data Sheet
Standards Compliance
Features
The BCM43903 supports the following features:
⢠ARM Cortex-R4 clocked at 160 MHz (in 1à mode) or up to 320 MHz (in 2à mode).
⢠1 MB of SRAM and 640 KB ROM available for the applications processor.
⢠One high-speed 4-wire UART interface with operation up to 4 Mbps.
⢠Two low-speed 2-wire UART interfaces multiplexed on general purpose I/O (GPIO) pins.
⢠One dedicated BSC1 interface.
Note: Another BSC interface can be defined by reconfiguring GPIOs. See Table 10: âPin
Multiplexing,â on page 52.
⢠One SPI master/slave interface with operation up to 24 MHz.
Note: In addition to the dedicated BSC interface, the SPI interface can be used as a BSC master
interface.
Note: Another SPI interface can be defined by reconfiguring GPIOs. See Table 10: âPin
Multiplexing,â on page 52.
⢠One SPI master interface for serial flash.
⢠Six dedicated PWM outputs.
⢠17 GPIOs.
⢠IEEE 802.11 b/g/n 1Ã1 2.4 GHz radio.
⢠Single- and dual-antenna support.
Standards Compliance
The BCM43903 supports the following standards:
⢠IEEE 802.11n
⢠IEEE 802.11b
⢠IEEE 802.11g
⢠IEEE 802.11d
⢠IEEE 802.11h
⢠IEEE 802.11i
⢠Security:
â WEP
â WPA Personal
â WPA2 Personal
1. Broadcom Serial Control (BSC) is an I2C-compatible interface.
Broadcom®
March 12, 2016 ⢠43903-DS102-R
BROADCOM CONFIDENTIAL
Page 12
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