User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH
Page 43
4.2.10
Mini PCIe
PCIe X1
USB OTG2
SIM
Card
(X18)
I2C2
LEDs
TQMa7x
Mini PCIe
(X17)
Figure 32: Block diagram Mini PCIe
A Mini PCIe slot (PCIe ×1) for full-size cards is available on the MBa7x. Pin assignment see Table 56.
Any standard compliant Mini PCIe card can be used.
An additional SIM card holder is installed to use a GSM card, see chapter 4.2.11.
A high level at VCC3V3_MPCIE_EN switches VCC3V3_MPCIE on, a low level switches VCC3V3_MPCIE off.
A high level at VCC1V5_MPCIE_EN switches VCC1V5_MPCIE on, a low level switches VCC1V5_MPCIE off.
Both voltages are switched off by default.
Table 54:
Max currents, Mini PCIe
Parameter
Min.
Typ.
Max.
Current @ 3.3 V
–
–
1.1 A
Current @ 1.5 V
–
–
0.375 A
Figure 33: Position of Mini PCIe – X17, J1900
