Host Control Interface

Host Control Interface

(hardware, wireless communications)
(HCI) A network layer in the Bluetooth Core Protocol Stack, lying between the software and the hardware stacks and serving as the interface through which the software controls two of Bluetooth’s four core protocols.
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The R4870 also comes with a number of additional functions such as the ability to automatically start the testing of Bluetooth modules via its embedded host control interface (HCI) and the ability to perform tests using a "dirty" transmitter signal.