BCM4354 datasheet(37/192 Pages) CYPRESS

37 / 192 page

Link Control Layer

BCM4354 Data Sheet

BROADCOM CONFIDENTIAL

Broadcom®

October 15, 2014 • 4354-DS109-R

Page 36

Link Control Layer

The link control layer is part of the Bluetooth link control functions that are implemented in dedicated logic in the

link control unit (LCU). This layer consists of the command controller that takes commands from the software,

and other controllers that are activated or configured by the command controller, to perform the link control

tasks. Each task performs a different state in the Bluetooth Link Controller.

• Major states:

– Standby

– Connection

• Substates:

–Page

– Page Scan

– Inquiry

– Inquiry Scan

–Sniff

Test Mode Support

The BCM4354 fully supports Bluetooth Test mode as described in Part I:1 of the Specification of the Bluetooth

System Version 3.0

. This includes the transmitter tests, normal and delayed loopback tests, and reduced

hopping sequence.

In addition to the standard Bluetooth Test Mode, the BCM4354 also supports enhanced testing features to

simplify RF debugging and qualification and type-approval testing. These features include:

• Fixed frequency carrier wave (unmodulated) transmission

– Simplifies some type-approval measurements (Japan)

– Aids in transmitter performance analysis

• Fixed frequency constant receiver mode

– Receiver output directed to I/O pin

– Allows for direct BER measurements using standard RF test equipment

– Facilitates spurious emissions testing for receive mode

• Fixed frequency constant transmission

– Eight-bit fixed pattern or PRBS-9

– Enables modulated signal measurements with standard RF test equipment

BCM4354 bảng dữ liệu(PDF) 37 Page - Cypress Semiconductor