Operational Description of HiLoV2 module 1.
. Functional description 2.1 Power supply system The power supply system includes: VBAT, VGPIO, VBACKUP, Reset and Power control (POK_IN signal, RF burst indicator signal). The VBAT is the power supply for the module. Its range is from 3.2V to 4.5V. The VGPIO is the power supply output from the module. It is supplied for external circuits and its rated value is 2.8V. The VBACKUP is the power supply of backup battery. It should be connected to a backup battery.
2.4 RTC There is a RTC crystal inside the module. It is used for real time counting. 2.5 JTAG There are 9 JTAG pads in the module. They are for JTAG debugging and reserved for Sagemcom. 2.6 Peripherals The peripherals include: ADC, PCM, GPIO, SIM, PWM and two UARTs. The ADC allows external sensor analog input to the module. The PCM is the digital audio interface which can be used for digital audio data communication with host CPU. The GPIOs are used for controlling external circuits.
