User Manual

MPA Project Document DOC #
XWING1 Users Guide
Copyright 2011 Motorola Solutions, Inc.
20110307-A 17 of 20
Confidential Material – Disclosure Strictly Prohibited.
The Bluetooth subsystem requires nine (9) connections to the host in order for full
operation, including PCM (4), High-Speed UART (4) and BT_GPS_FM_EN (1) , which
shall be connected to the host to enable the Bluetooth IP. It should also be noted that
an additional line from the WL1283 can be used for debug purposes, namely
BT_UART_DBG.
2.4.1.1. Hardware Interface
2.4.1.1.1. HCI UART Transport layers
The HCI UART Supports 4-wire UART interface to host. Supports most baud rates for
all fast clock frequencies, up to a maximum of 4Mbps. Default baud rate after power up
is 115.kkbps with a deviation of +1.5%, -2.5%, until baud is changed via a vendor
specific command.
o BT_GPS_FM_TX
o BT_GPS_FM_RX
o BT_GPS_FM_RTS
o BT_GPS_FM_CTS
2.4.1.1.2. PCM Audio
PCM audio interface to the host uses the following signals:
In Slave mode, input frequencies up to 16MHz supported. In master mode, the TI1283
can generate any clock frequency between 64KHz and 4.096MHz.
o BT_PCM_OUT
o BT_PCM_IN
o BT_PCM_SYNC
o BT_PCM_CLK
The BT Audio Codec has a fully dedicated programmable serial port
o Two voice channels
o Supports Master/slave modes
o u-law, a-law, linear and transparent coding schemes
o Long and short frames
o Different data sizes, order and positions
o UDI profile
o High rate PCM
2.4.2. Power Class
XW1 supports up to Power Class 1.5 Operation.