User Manual

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CL5ADAH2Z
Confidential
2020.11.05 rev.1.1
6.2.3. Close data interface
Host has no send data and wants to close data interface.
Then shift the state of module Active to DH2.
Figure21 close data interface
UART0_RX and UART0_TX are always high.
(1) Host detects that it is sending the last data bit in a session and module is not transmitting
any data (UART0_TX = high)
(2) Host will not send any data (UART0_RX = fix = high)
(3) Host sets PMU_WAKEUP to low (PMU_WAKEUP = low)
(4) Module detects PMU_WAKEUP is low, and sets SC_SWP to low (SC_SWP = low)
The point is, the data interface closes and the module will sleep