User's Manual

UMTS/HSPA Module Series

UG95 Hardware Design

UG95_Hardware_Design Confidential / Released 23 / 67

Supply power to USB_VBUS will wake up the module.

The following figure shows the connection between the module and application processor.

USB_VBUS

USB_DP

USB_DM

AP_READY

VDD

USB_DP

USB_DM

GPIO

Module Processor

EINT

Power

Switch

GPIO

GND

Figure 4: USB Sleep Application without Suspend Function

In sleep mode, the module can still receive paging message, SMS, voice call and TCP/UDP data from the

network normally.

AP_READY is under development.

3.5.2. Minimum Functionality Mode

Minimum functionality mode reduces the functionality of the module to minimum level, thus minimizes the

current consumption at the same time. This mode can be set as below:

Command AT+CFUN provides the choice of the functionality levels: <fun>=0, 1, 4.

 AT+CFUN=0: Minimum functionality, RF part and USIM card will be closed.

 AT+CFUN=1: Full functionality (by default).

 AT+CFUN=4: Disable RF function (airplane mode). All AT commands related to RF function are not

accessible.

For detailed information about command AT+CFUN, please refer to document [1].

NOTE