User Manual

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CL5ADAH2Z
Confidential
2020.11.05 rev.1.1
6.2.2. Open data interface –module to host
When module wants to send data to host, module opens data interface.
Figure20 open data interface - module to host
First, data interface state is not open.
UART0_RX and UART0_TX are always high.
(1) Module wants to send data to host. Module sets SC_SWP to high (SC_SWP = high)
(2) When host detects module sets SC_SWP to high, host needs to do the processing
necessary to receive data
(3) When host is completed the processing on UART, host sets PMU_WAKEUP to high
(PMU_WAKEUP = high)
The data interface is opened and communication can start