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LPWA Module Series

BG600L-M3 Hardware Design

BG600L-M3_Hardware_Design 28 / 83

should never be pulled down to GND permanently.

2. RESET_N is connected directly to PWRKEY inside the module.

3. The input voltage range of USB_VBUS is 1.3–1.8 V.

4. GPIO1 (pin 9), NET_STATUS (pin 47), GRFC1 (pin 63) and GNSS_LNA_EN (pin 66) are

BOOT_CONFIG pins, and please do not pull them up before startup.

5. USBPHY_3P3 and USBPHY_3P3_EN pins are used for USB PHY circuits.

6. Keep all RESERVED pins and unused pins unconnected.

7. “*” means under development.

2.3 Operating Modes

The table below briefly summarizes the various operating modes of BG600L-M3.

Table 5: Overview of Operating Modes

Mode Details

Normal

Operation

Connected

Network has been connected. In this mode, the power consumption

may vary with the network setting and data transfer rate.

Idle

Software is active. The module remains registered on network, and it

is ready to send and receive data.

Extended Idle

Mode DRX

(e-I-DRX)

BG600L-M3 module and the network may negotiate over non-access stratum

signaling the use of e-I-DRX for reducing power consumption, while being available for

mobile terminating data and/or network originated procedures within a certain delay

dependent on the DRX cycle value.

Airplane Mode

AT+CFUN=4 can set the module into airplane mode. In this case, RF function will be

invalid.

Minimum

Functionality

Mode

AT+CFUN=0 can set the module into a minimum functionality mode without removing

the power supply. In this case, both RF function and (U)SIM card will be invalid.

Sleep Mode

In this mode, the current consumption of the module will be reduced to a lower level.

During this mode, the module can still receive paging message, SMS and TCP/UDP

data from the network normally.

Power OFF

Mode

In this mode, the power management unit shuts down the power supply. The software

is not active. The serial interfaces are not accessible. But the operating voltage

(connected to VBAT_RF and VBAT_BB) remains applied.

Power Saving

Mode

(PSM)

BG600L-M3 module may enter Power Saving Mode to further reduce its power

consumption. PSM is similar to power-off, but the module remains registered on the

network and there is no need to re-attach or re-establish PDN connections.