User's Manual

eUniStone
PBA 31309
Bluetooth Capabilities
User’s Manual Intel Public 21
Hardware Description Revision 1.0, 1-Feb-2013
5.2.3 Sniff Mode
The local host or the remote device can request sniff mode for the link. During sniff
mode, the devices synchronize on sniff instants only. The module will enter low power
mode in the sniff intervals, if allowed by the host LPM control signals. Data packets can
be exchanged at the sniff instants only, so the data rate is reduced in sniff mode. The
module will wake up the host when data is received or other responses need to be
transmitted.
5.2.4 Sniff Subrating
The local host or the remote device can request Sniff Subrating for the link. When in
sniff mode, the device will automatically switch between Sniff Mode and Sniff Subrating
Mode making it possible to stay longer in Low Power Mode when there is no data
transmitted or received.
5.2.5 Enhanced Power Control
eUniStone support Enhanced Power Control according to Bluetooth specification 3.0.
The Enhanced Power Control is handled automatically to make different modulations
modes transmit on optimal levels.
5.2.6 Encryption Pause and Resume
Encryption Pause Resume is supported making it possible to change connection link key
on an encrypted link, pause the encryption and resume it with the new link key. This is
handled automatically by eUniStone to make the link more secure.