Integration Guide

Rev 1 Apr.16 9 Specifications subject to change
2
2: Power
Power Supply
The host provides power to the AirPrime WP7504 through multiple power and
ground pins. The host must provide safe and continuous power at all times; the
module does not have an independent power supply, or protection circuits to
guard against electrical issues.
For detailed pinout and voltage / current requirements of this module, see the
AirPrime WP75XX Product Technical Specification.
Module Power States
The module has three main power states, as described in Table 2-1.
Table 2-1: Supported Power States
State Description Wake-Up Events
OFF Module is off (no power to the system).
Apply power for system to go to Active state.
Apply power.
Interrupt Simple wakeup sources are configured to interrupt from this
power-saving state to the Active state.
An event generated from a state change of
RESET_IN_N or POWER_ON_N, or a
timeout event.
Active The module may be fully functioning (WWAN radio and GNSS
radio active), or be operating in airplane mode (WWAN radio off).
Module actively reduces power consumption by disabling
components that are not in use (for example, stepping down
clock signals, putting USB bus into selective suspend, etc.)
System wakes up (returns to fully active
mode) automatically as required, or can be
woken directly via wakeable GPIOs.