User's Manual

NEMO Bluetooth Radio Module
Solutions for a Real Time World Datasheet
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Copyright Unigen Corporation, 2008
GCI Interface
NEMO is compatible with General Circuit Interface (GCI), a standard synchronous 2B+D ISDN
timing interface. The two 64kbps B channels can be accessed when this mode is configured.
Figure 13: GCI Interface
The start of frame is indicated by the rising edge of BT_PCM_SYNC_P and runs at 8kHz. With
NEMO in slave mode, the frequency of BT_PCM_CLK can be up to 4.096MHz.