User's Manual

LTE Module Series
BG96 Hardware Design
BG96_Hardware_Design Confidential / Released 43 / 71
Table 16: Pin Definition of SPI* Interface
Pin Name
Pin No.
I/O
Description
Comment
SPI_CLK*
26
DO
SPI master clock
1.8V power domain.
SPI_MOSI*
27
DO
Master Out Slave in of SPI
interface
1.8V power domain
SPI_MISO*
28
DI
Master In Slave Out of SPI
interface
1.8V power domain
“*” means under development.
3.13. Network Status Indication
BG96 provides one network indication pin: NETLIGHT. The pin is used to drive a network status indication
LED. The following tables describe the pin definition and logic level changes of NETLIGHT in different
network activity status.
Table 17: Pin Definition of Network Status Indicator
Pin Name
Pin No.
I/O
Description
Comment
NETLIGHT
21
DO
Indicate the module’s network activity
status
1.8V power domain
Table 18: Working State of the Network Status Indicator
Pin Name
Logic Level Changes
Network Status
NETLIGHT
Flicker slowly (200ms High/1800ms Low)
Network searching
Flicker slowly (1800ms High/200ms Low)
Idle
Flicker quickly (125ms High/125ms Low)
Data transfer is ongoing
Always high
Voice calling
A reference circuit is shown in the following figure.
NOTE