Table 40. Sample voltage report (continued)
Source Net Name
Expected
(V)
Measured
(V)
Measure
point
Comment
Ext 3.3V SMPS VCC_EXT_3V3 3.3 V TP52
Main 3.3 V supply for
the board
PMIC1 SW1&2 VCC_MAIN 1.0 V TP8
PMIC1_SW3&4 VCC_CPU1 1.0 V TP22
PMIC1_SW5 VCC_CPU0 1.0 V TP21
PMIC1_SW6 VCC_DDRIO1 1.1 V TP33
PMIC1_SW7 VCC_1V8 1.8 V TP16
PMIC2_SW1&2 VCC_GPU0 1.0 V TP53
PMIC2_SW3&4 VCC_GPU1 1.0 V TP42
PMIC2_SW5 VCC_MEMC 1.1 V TP36
PMIC2_SW6 VCC_DDRIO0 1.1 V TP23
PMIC2_SW7 VCC_3V3 3.3 V TP3
PMIC1_LDO1 VCC_SCU_1V8 1.8 V TP11
PMIC1_LDO2 VCC_LDO_SD1 1.8 V/3.3 V TP78
Can be either one under
software control (via
USDHC1_VSELECT)
PMIC2_LDO1 VCC_LDO_SIM 1.8 V/3.3 V TP37
Can be either one under
software control
PMIC2_LDO2 VCC_LDO_SD2 1.8 V/3.3 V TP43
Can be either one under
software control (via
USDHC2_VSELECT)
PMIC1_SNVS VCC_SNVS 3.0 V C277-1
i.MX8 LDO VDD_SNVS_ LDO_1P8_CAP 1.8 V C311-1
Internal LDO sourced
by i.MX8
i.MX8 LDO VDD_PCIE_ LDO_1P0_CAP 1.0 V C417-1
Internal LDO sourced
by i.MX8
i.MX8 LDO VDD_USB_SS3_ LDO_1P0_CAP 1.0 V C411-1
Internal LDO sourced
by i.MX8
i.MX8 LDO VDD_HDMI_TX0_LDO_1P0_CAP 1.0 V C306-1
Internal LDO sourced
by i.MX8
Table continues on the next page...
NXP Semiconductors
Avoiding board bring-up problems
i.MX8 QM / i.MX8 QXP Hardware Developer’s Guide, Rev. 2.4p, 06/2021
User's Guide 82 / 89
To Next Page
Loading...