Product Info

LTE Standard Module Series
EG95 Hardware Design
EG95_Hardware_Design 49 / 93
SPI_MISO
SPI_MOSI
SPI_CLK
Module
SPI_CLK
SPI_MOSI
SPI_MISO
Peripherals
Figure 25: Reference Circuit of SPI Interface with Peripherals
1. SPI interface is not supported on ThreadX modules.
2. The module provides 1.8V SPI interface. A level translator should be used between the module and
the host if customer’s application is equipped with a 3.3V processor or device interface.
3.14. Network Status Indication
The module 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
status.
Table 16: 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 17: Working State of 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
NOTES