BC352239A Datasheet, PDF (32/116 Pages) List of Unclassifed Manufacturers – BlueCore 3-Multimedia External

Description of Functional Blocks
6.5.6 External Memory Driver
The External Memory Driver interface can be used to connect to the external Flash memory and also to the
optional external RAM for memory-intensive applications.
6.5.7 USB
This is a full speed Universal Serial Bus (USB) interface for communicating with other compatible digital devices.
BlueCore3-Multimedia External acts as a USB peripheral, responding to requests from a Master host controller
such as a PC.
6.5.8 Synchronous Serial Interface
This is a synchronous serial port interface (SPI) for interfacing with other digital devices. The SPI port can be
used for system debugging. It can also be used for programming the Flash memory.
6.5.9 UART
This is a standard Universal Asynchronous Receiver Transmitter (UART) interface for communicating with other
serial devices.
6.6 Microcontroller
The microcontroller (MCU), interrupt controller and event timer run the Bluetooth software stack and control the
radio and host interfaces. A 16-bit reduced instruction set computer (RISC) microcontroller is used for low power
consumption and efficient use of memory.
6.6.1 Programmable I/O
BlueCore3-Multimedia External has a total of 16 (12 digital and 4 analogue) programmable I/O terminals. These
are controlled by firmware running on the device.
BC352239A-ds-001Pc
© Cambridge Silicon Radio Limited 2004
Production Information
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