BC41B143A-DS-003PC Datasheet, PDF (36/94 Pages) List of Unclassifed Manufacturers – BlueCore 4-ROM Plug-n-Go Single Chip Bluetooth v2.0 + EDR System

CSR Bluetooth Software Stacks
9 CSR Bluetooth Software Stacks
BlueCore4-ROM Plug-n-Go is supplied with Bluetooth v2.0 + EDR compliant stack firmware, which runs on the internal
RISC microcontroller.
The BlueCore4-ROM Plug-n-Go software architecture allows Bluetooth processing and the application program to be
shared in different ways between the internal RISC microcontroller and an external host processor (if any). The upper
layers of the Bluetooth stack (above HCI) can be run either on-chip or on the host processor.
9.1 BlueCore HCI Stack
Host
USB
UART
HCI
LM
LC
48KB RAM
Baseband
MCU
Host I/O
Radio
PCM I/O
Figure 9.1: BlueCore HCI Stack
In the implementation shown in Figure 9.1 the internal processor runs the Bluetooth stack up to the Host Controller
Interface (HCI). The Host processor must provide all upper layers including the application.
BC41B143A-ds-003Pc
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© Cambridge Silicon Radio Limited 2005
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