WT21-A-HCI 데이터 시트보기 (PDF) - Unspecified

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WT21-A-HCI

BLUETOOTH HCI MODULE

Unspecified 

The following voice data translations and operations are performed by firmware:



A-law/µ-law/linear voice data (from host)



A-law/µ-law/Continuously variable Slope Delta (CVSD) (over the air)



Voice interpolation for lost packets



Rate mismatches

The hardware supports all optional and mandatory features of Bluetooth v2.1 + EDR including

AFH and eSCO.

3.5

WLAN Coexistence

Dedicated hardware is provided to implement a variety of coexistence schemes. Channel

skipping AFH, priority signalling, channel signalling and host passing of channel instructions are

all supported. The features are configured in firmware.

For more information contact Buegiga technical support.

3.6

Configurable I/O Parallel Ports

lines of programmable bi-directional input/outputs (I/O) are provided. PIO[1: 5, 7, 9] are

powered from VDD_PADS.

PIO lines can be configured through software to have either weak or strong pull-ups or pull-

downs. All PIO lines are configured as inputs with weak pull-downs at reset.

Any of the PIO lines can be configured as interrupt request lines or as wake-up lines from sleep

modes.

Bluegiga cannot guarantee that the PIO assignments remain as described. Refer to the relevant

software release note for the implementation of these PIO lines, as they are firmware build-

specific.

Bluegiga Technologies Oy

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