User's Manual

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Note d’étude / Technical document : URD1– OTL
5665.3 – 003 / 72238 Edition 01
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4.14 START THE MODULE PROPERLY AND AVOID POWER UP ISSUES.
This chapter gives advices on how to make a proper start of the HiLoNC V2 module and sums up the side
effects of a non compliant power up sequence or a non compliant hardware connection between the HiLoNC V2
and the host CPU.
4.14.1 Power domains
Each HiLoNC V2 pad is linked to a specific internal power domain as the following:
• VANA is typically 2.85V and is a general purpose analogue dedicated voltage.
• VBAT is typically 3.2V to 4.5V and is the main system voltage.
• VRTC is typically 3.0V and is the real time clock dedicated voltage.
• VGPIO is typically 2.8V and is a general purpose digital dedicated voltage.
• VSIM is typically 1.8V or 2.9V and is the digital SIM card function dedicated voltage.
• VPERM is typically 3.0V and is the permanent voltage dedicated to launch the power up sequence.
The next table gives the 51 HiLoNC V2 pads with all their relative power domains.
HiLoNC
Pads
Signal Name Function Power domain
E1 /INTMIC_P AUDIO 2.85V
E2 /AUX_ADC0 ADC 2.85V
E3 GND POWER 0V
E4 VGPIO EXT_VDD 2.8V
E5 VBACKUP EXT_VDD 3.0V
E6 /PWM0 PWM 2.85V
E7 /RESET_IN RESET 2.8V
E8 SAGEMCOM FACTORY USE 2.8V
E9 SAGEMCOM FACTORY USE 2.8V
E10 SAGEMCOM FACTORY USE 2.8V
E11 SAGEMCOM FACTORY USE 2.8V
E12 SAGEMCOM FACTORY USE 2.8V
E13 NTRST
JTAG/FACTORY
2.8V
E14 /GPIO2 GPIO 2.8V
E15 /GPIO1 GPIO 2.8V
E16 /RF_TX RF 2.8V
E17 /PCM_CLK PCM 2.85V
E18 /PCM_SYNC PCM 2.85V
E19 /PCM_OUT PCM 2.85V
E20 /PCM_IN PCM 2.85V
E21 GND POWER 0V
E22 / JTAG1 JTAG 2.8V
E23 /JTAG2 JTAG 2.8V
E24 /TEST JTAG 2.8V
E25 /UART0_RXD UART 0 2.85V
Figure 30 : HiLoNC V2 51 pads with their power domains