User's Manual
Table Of Contents
- General Description
- Benefits
- More Information
- Overview
- Pad Connection Interface
- Recommended Host PCB Layout
- Module Connections
- Connections and Optional External Components
- Bluetooth Baseband Core
- Microprocessor Unit
- Integrated Radio Transceiver
- Collaborative Coexistence
- Global Coexistence Interface
- Peripheral Transport Unit
- PCM Interface
- Clock Frequencies
- GPIO Port
- PWM
- Triac Control/PWM
- Serial Peripheral Interface
- Power Management Unit
- Electrical Characteristics
- RF Specifications
- Timing and AC Characteristics
- Environmental Specifications
- Regulatory Information
- Packaging
- Ordering Information
- Acronyms
- Document Conventions
- Document History Page
- Sales, Solutions, and Legal Information
Document Number: 002-19525 Rev. ** Page 14 of 49
PRELIMINARY
CYBT-343026-01
CYBT-343029-01
CYBT-143038-01
Bluetooth Baseband Core
The Bluetooth Baseband Core (BBC) implements all of the time-critical functions required for high-performance Bluetooth operation.
The BBC manages the buffering, segmentation, and routing of data for all connections. It also buffers data that passes through it,
handles data flow control, schedules SCO/ACL and TX/RX transactions, monitors Bluetooth slot usage, optimally segments and
packages data into baseband packets, manages connection status indicators, and composes and decodes HCI packets. In addition
to these functions, it independently handles HCI event types, and HCI command types. The following transmit and receive functions
are also implemented in the BBC hardware to increase reliability and security of the TX/RX data before sending over the air:
n Symbol timing recovery, data deframing, forward error correction (FEC), header error control (HEC), cyclic redundancy check (CRC),
data decryption, and data dewhitening in the receiver.
n Data framing, FEC generation, HEC generation, CRC generation, key generation, data encryption, and data whitening in the
transmitter.
Bluetooth 4.2 Features
CYBT-X430XX-01 supports all Bluetooth 4.2 and legacy features, with the following benefits
n Dual-mode Bluetooth (BT and BLE operation)
n Extended inquiry response (EIR): Shortens the time to retrieve the device name, specific profile, and operating mode.
n Encryption pause resume (EPR): Enables the use of Bluetooth technology in a much more secure environment.
n Sniff subrating (SSR): Optimizes power consumption for low duty cycle asymmetric data flow, which subsequently extends battery life.
n Secure simple pairing (SSP): Reduces the number of steps for connecting two devices, with minimal or no user interaction required.
n Link supervision time out (LSTO): Additional commands added to HCI and Link Management Protocol (LMP) for improved link
timeout supervision.
n Quality of service (QoS) enhancements: Changes to data traffic control, which results in better link performance. Audio, human
interface device (HID), bulk traffic, SCO, and enhanced SCO (eSCO) are improved with the erroneous data (ED) and packet boundary
flag (PBF) enhancements.
n Secure connections (BR/EDR)
n Fast advertising interval
n Piconet clock adjust
n Connectionless broadcast
n LE privacy v1.1
n Low duty cycle directed advertising
n LE dual mode topology
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 is performed in a different state in the Bluetooth
Link Controller.
n States:
p Standby
p Connection
p Page
p Page Scan
p Inquiry
p Inquiry Scan
p Sniff
p Advertising
p Scanning