AIROC™ Bluetooth® system on chip for automotive applications
Bluetooth® baseband core
1
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 ACL, SCO, eSCO,
LE, and 2 Mbps LE connections. It prioritizes and schedules all RX/TX activities including adv, paging, scanning,
and servicing of connections. In addition to these functions, it independently handles the host controller
interface (HCI) including all commands, events, and data flowing over HCI. The core also handles symbol timing,
forward error correction (FEC), header error control (HEC), cyclic redundancy check (CRC), authentication, data
encryption/decryption, and data whitening/dewhitening.
Table 1 lists key Bluetooth® features supported by the CYW89820.
Table 1
Key Bluetooth® features supported by CYW89820
Bluetooth® 1.0
Basic rate
SCO
Paging and inquiry
Page and inquiry scan
Sniff
Bluetooth® 1.2
Interlaced scans
Adaptive frequency hopping
eSCO
–
–
Bluetooth® 2.0
EDR 2 Mbps and 3 Mbps
–
–
–
–
Bluetooth® 2.1
Secure simple pairing
Enhanced inquiry response
Sniff Subrating
Bluetooth® 4.1
Low duty cycle advertising
Dual mode
Bluetooth® 3.0
Unicast connectionless data
Enhanced power control
eSCO
Bluetooth® 4.2
Data packet length extension
LE secure connection
Link layer privacy
Bluetooth® 4.0
Bluetooth® Low Energy
–
–
Bluetooth® 5.0
LE 2 Mbps
Slot availability mask
High duty cycle advertising
LE link layer topology
1.1
BQB and regulatory testing support
The CYW89820 fully supports Bluetooth® test mode as described in Part I:1 of the Specification of the Bluetooth®
System v3.0. This includes the transmitter tests, normal and delayed loop back tests, and reduced hopping
sequence.
In addition to the standard Bluetooth® test mode, the CYW89820 also supports enhanced testing features to
simplify RF debugging and qualification. 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
- 8-bit fixed pattern or PRBS-9
- Enables modulated signal measurements with standard RF test equipment
Datasheet
6
002-25826 Rev. *G
2022-09-24
INFINEON [ Infineon ]
