Figure 32. HDMI output connectivity
3.14 Unused input/output terminations
3.14.1 i.MX8 QM unused input/output guidance
If a function on the i.MX8 QM is not used, the I/Os and power rails of that function can be terminated to reduce overall board power.
See Table 35 for recommended connectivity for unused power supply rails and see Table 36 for recommended connectivity for
unused signal contacts/interfaces.
Table 35. i.MX8 QM unused power rail strapping recommendations
Function Ball Name Recommendation if unused
ADC VDD_ADC_1P8
Must be powered;
directly connected
to VDD_ADC_DIG_1P8
Analog Test VDD_SCU_ANA_1P8 Must be powered
Charge Pump
VDD_CP_1P8, VDD_M1P8_CAP Must be powered with
capacitor installed
HDMI-RX
VDD_HDMI_RX0_1P8, VDD_HDMI_RX0_LDO0_1P0_CAP,
VDD_HDMI_RX0_LDO1_1P0_CAP,
VDD_HDMI_RX0_VH_RX_3P3
Ground
Table continues on the next page...
NXP Semiconductors
i.MX8 layout/routing recommendations
i.MX8 QM / i.MX8 QXP Hardware Developer’s Guide, Rev. 2.4p, 06/2021
User's Guide 68 / 89
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