User's Manual

2
Contents:
1. Device Features Overview .......................................................................... 4
2. General Description.................................................................................... 5
2.1 Physical Outlook..........................................................................................5
2.2 Block Diagram and Descriptions.....................................................................6
2.2.1 BlueCore04 ...........................................................................................6
2.2.2 Crystal .................................................................................................7
2.2.3 Flash....................................................................................................7
2.2.4 Balun/Filter ...........................................................................................7
2.2.5 Matching...............................................................................................7
2.2.6 Antenna................................................................................................7
2.2.7 USB .....................................................................................................7
2.2.8 Synchronous Serial Interface ...................................................................7
2.2.9 UART ...................................................................................................7
2.2.10 Audio PCM Interface ............................................................................7
2.2.11 Programmable I/O...............................................................................7
2.2.12 Reset.................................................................................................7
2.2.13 802.11 Coexistence Interface................................................................7
2.3 Applications ................................................................................................8
3. Physical Layer Specifications...................................................................... 9
4. General Specifications .............................................................................. 10
5. Electrical Charasteristics .......................................................................... 12
6. WT12 PIN description .............................................................................. 13
7. Foot print ................................................................................................. 15
8. Physical Dimensions................................................................................. 17
9. Physical Interfaces................................................................................... 18
9.1 UART Interface.......................................................................................... 18
9.1.1 UART Configuration While RESET is Active ............................................... 21
9.1.2 UART Bypass Mode............................................................................... 21