Functional Description; Bluetooth® Baseband Core; Link Control Layer - Infineon AIROC CYBLE-343072-02 Manual

AIROC™ Bluetooth® LE module

Functional description

6 Functional description
6.1 Bluetooth® baseband core
The Bluetooth® baseband core (BBC) implements all of the time-critical functions required for high-performance
Bluetooth® LE 5.0 operation. The BBC manages the buffering, segmentation, and routing of data for all connec-
tions. It also buffers data that passes through it, handles data flow control, schedules LL and TX/RX transactions,
monitors Bluetooth® LE 5.0 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.
Table 8 Bluetooth® features
Bluetooth® Low Energy 4.1
Bluetooth® Low Energy
Low duty cycle advertising
LE-HID
LE master and slave
Common profiles
GATT
ATT
FMP
HOGP
HTP
PXP
6.1.1

Link control layer

The link control layer is part of the Bluetooth® LE 5.0 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 or substate in the Bluetooth® Low Energy Link Controller.
• Bluetooth® LE states:
- Advertising
- Scanning
- Connection
• Major states:
- Standby
- Connection
• Substates:
- Page
- Page Scan
- Inquiry
- Inquiry Scan
Preliminary Datasheet
Bluetooth® Low Energy 4.2
Data packet length extension
LE secure connection
Common profiles
GATT
ATT
FMP
HOGP
HTP
PXP
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Bluetooth® Low Energy 5.0
Bluetooth® LE 2 Mbps
Common profiles
GATT, ATT
MESH
FMP
HOGP
HTP
PXP
002-33419 Rev. **
2021-07-22