BCM4390DKWBGT Datasheet, PDF (23/78 Pages) Cypress Semiconductor – WICED™ Wi-Fi IEEE 802.11 b/g/n SoC with Embedded Application Processor

BCM4390 Advance Data Sheet
Applications Microprocessor Subsystem External Interfaces
Section 5: Applications Microprocessor
Subsystem External Interfaces
Introduction
The BCM4390 provides a large variety of IO interfaces to enable flexible system design:
• A SPI master for flash access
• A SPI master/slave
• Two high-speed 4-wire UARTs
• Two 2-wire UART available for use by the Apps core (and WLAN core for debugging)
• An I²C interface
• An I²S interface
• Up to 24 GPIOs organized in two separate banks of 12. GPIOs in Bank A have alternate functions (see
Table 4 on page 23), GPIOs in Bank B are dedicated.
BROADCOM ®
February 5, 2014 • 4390-DS103-R
WICED Wi-Fi IEEE 802.11 SoC w/Embedded App Processor
Page 22
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