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4.3.1. Main UART Interface
Table 15: Pin Definition of Main UART Interface
Pin Name
Pin No.
MAIN_CTS
56
MAIN_RTS
57
MAIN_RXD
58
MAIN_DCD
59
MAIN_TXD
60
MAIN_RI
61
MAIN_DTR
62
4.3.2. Debug UART Interface
Table 16: Pin Definition of Debug UART Interface
Pin Name
Pin No.
DBG_RXD
136
DBG_TXD
137
4.3.3. Bluetooth UART
The module provides one Bluetooth UART interface multiplexed from SPI interface. The following table
shows the Bluetooth UART interface pin definition.
EG060K &EG120K _Series_Hardware_Design
103
I/O
Description
DO
DCE clear to send signal to DTE
DCE request to send signal from
DI
DTE
DI
Main UART receive
DO
Main UART data carrier detect
DO
Main UART transmit
DO
Main UART ring indication
DI
Main UART data terminal ready
I/O
Description
DI
Debug UART receive
DO
Debug UART transmit
Interface*
LTE-A Module Series
Comment
1.8 V power domain.
If unused, keep them
open.
1.8 V power domain.
Pulled up by default.
Pulling low will awaken
the module.
If unused, keep it open.
Sleep mode control.
Comment
1.8 V power domain.
If unused, keep them open.
47 /
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