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3.5.3. Coexistence Interface
The following table shows the pin definition of coexistence interface
Table 13: Pin Definition of Coexistence Interface
Pin Name
Pin No.
LTE_UART_TXD
5
LTE_UART_RXD
6
The following figure shows the coexistence interface connection between FC21 and EC2x&EG2x-G.
FC21_Hardware_Design
I/O
Description
LTE/Wi-Fi&BT
DO
coexistence signal
LTE/Wi-Fi&BT
DI
coexistence signal
Figure 10: Coexistence Interface Connection
Wi-Fi&BT Module Series
FC21 Hardware Design
1)
.
Comment
1.8V power domain.
If unused, keep these pins open.
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