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sleep when not needed by toggling it low.
“WAKEUP_IN” (Host: Output, Modem: Input):
LOW: SoC does not require the MODEM (allowing it to sleep).
HIGH: SoC requires the MODEM or acknowledges it is ready following a wakeup request from the
MODEM.
“WAKEUP_OUT” (Host: Input, Modem: Output):
LOW: The MODEM does not require the Host (allowing it to sleep)
HIGH: The MODEM requires the Host or acknowledges it is ready following a wakeup request
from the SoC.
2.8. Digital interface
This section provides the required AC timing information relating to Module Digital Interfaces.
2.8.1. JTAG Interface
There is one JTAG interface for LGA module debugging.
Figure 6.
JTAG schematic (example)
2.8.2. SPI Master Interface
SPIM_CLK – Output clock
SPIM_CS – Output, chip-select
SPIM_MOSI – Output, data to slave
SPIM_MISO – Input, data from slave
