Spi Interface; Network Status - Sunsea AIoT SIMCom SIM7600NA User Manual

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3.12 SPI Interface

SIM7600NA provides a SPI interface as a master only. It provides a duplex, synchronous, serial
communication link with peripheral devices. Its operation voltage is 1.8V, with clock rates up to 50
MHz
Note
For more details of the AT commands about the SPI, please refer to document [1].

3.13 Network status

The NETLIGHT pin is used to control Network Status LED, its reference circuit is shown in the
following figure.
Note: The value of the resistor named "R" depends on the LED characteristic.
Table 19: NETLIGHT pin status
NETLIGHT pin status
Always On
200ms ON, 200ms OFF
800ms ON, 800ms OFF
OFF
Note: NETLIGHT output low level as "OFF", and high level as "ON".
SIM7600NA_user manual _V1.00
Figure32: NETLIGHT reference circuit
Module status
Searching Network; Call Connect(include VOLTE,SRLTE)
Data Transmit; 4G registered;
2G/3G registered network
Power off ;Sleep
45
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2020-1-7

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