WT11 Datasheet - Glyn Store

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6. SOFTWARE STACKS <strong>WT11</strong> is supplied with Bluetooth v2.0 + EDR compliant stack firmware, which runs on the internal RISC microcontroller. The <strong>WT11</strong> software architecture allows Bluetooth processing and the application program to be shared in different ways between the internal RISC microcontroller and an external host processor (if any). The upper layers of the Bluetooth stack (above HCI) can be run either on-chip or on the host processor. 6.1 iWRAP Stack Host UART I/O PCM 48kB RAM Baseband MCU Host I/O PCM I/O 31 iWRAP RFCOMM SDP L2CAP HCI LM LC Radio Figure 24: WRAP THOR VM Stack In figure 24 above, the iWRAP software solution is described. In this version of the stack firmware shown no host processor is required to run the Bluetooth protocol stack. All software layers, including application software, run on the internal RISC processor in a protected user software execution environment known as a Virtual Machine (VM). The host processor interfaces to iWRAP software via one or more of the physical interfaces, which are also shown in the figure 24. The most common interfacing is done via UART interface using the ASCII commands supported by the iWRAP software. With these ASCII commands the user can access Bluetooth functionality without paying any attention to the complexity, which lies in the Bluetooth protocol stack. The user may write applications code to run on the host processor to control iWRAP software with ASCII commands and to develop Bluetooth powered applications.
Notes: More details of iWRAP software and it’s features can be found from iWRAP User Guide which can be downloaded from www.bluegiga.com. 6.2 HCI Stack Host USB UART I/O PCM 48kB RAM Baseband MCU Host I/O PCM I/O 32 HCI LM LC Radio Figure 25: WRAP THOR HCI Stack In the implementation shown in figure 25 the internal processor runs the Bluetooth stack up to the Host Controller Interface (HCI). The Host processor must provide all upper layers including the application. Features of HCI Stack 1. New Bluetooth v2.0 + EDR Mandatory Functionality: (AFH), including classifier Faster connection – enhanced inquiry scan (immediate FHS response) LMP improvements Parameter ranges 2. Optional v2.0 functionality supported: Adaptive Frequency Hopping (AFH) as Master and Automatic Channel Classification Fast Connect – Interlaced Inquiry and Page Scan plus RSSI during Inquiry Extended SCO (eSCO), eV3 +CRC, eV4, eV5 SCO handle Synchronization
Page 1 and 2: WT11 Data Sheet V e r s i o n 3 . 1
Page 3 and 4: Contents: 1. Block Diagram and Desc
Page 5 and 6: TERMS & ABBREVIATIONS Term or Abbre
Page 7 and 8: 1. BLOCK DIAGRAM AND DESCRIPTIONS B
Page 9 and 10: 802.11 Coexistence Interface Dedica
Page 11 and 12: Current consumption Test conditions
Page 13 and 14: Output power (dBm) 18 16 14 12 10 8
Page 15 and 16: Figure 6: WT11 internal reset circu
Page 17 and 18: 4. PHYSICAL INTERFACES 4.1 UART Int
Page 19 and 20: UART bus to be connected to the WT1
Page 21 and 22: WT12 PIO USB_D+ USB_D- USB_ON 20 R
Page 23 and 24: USB_DETACH USB_WAKE_UP 4.2.6 USB Dr
Page 25 and 26: 4.4 PCM Interface Pulse Code Modula
Page 27 and 28: PCM_SYNC PCM_CLK PCM_OUT PCM_IN und
Page 29 and 30: 13-bit sample PCM_OUT 1 2 3 4 5 6 7
Page 31: 5. I/O PARALLEL PORTS The Parallel
Page 35 and 36: Radio transmitter enable/disable -
Page 37 and 38: Full support for all Bluetooth powe
Page 39 and 40: The execution environment is struct
Page 41 and 42: Bit pattern Phase shift
Page 43 and 44: GND area with stitching vias 42 Edg
Page 45 and 46: 2.3 mm WT11-E Dimensions Tolerances
Page 47 and 48: 10. PACKAGE Figure 35: Reel informa
Page 49 and 50: 11. CERTIFICATIONS WT11 is complian
Page 51 and 52: 11.2.1 FCC antenna designation FCC
Page 53 and 54: 12. ROHS STATEMENT WITH A LIST OF B

WT11 Datasheet - Glyn Store

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