Application Interface; General Description; Ec25 Mini Pcie Interface; Definition Of Interface - Quectel EC25 Hardware Design

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Application Interface

3.1. General Description

The physical connections and signal levels of EC25 Mini PCIe comply with PCI Express Mini CEM
specifications. This chapter mainly describes the following interfaces' definition and application of EC25
Mini PCIe:

Power supply

USIM card interface

USB interface

UART interface

PCM&I2C interfaces

Control signals

Antenna interface

3.2. EC25 Mini PCIe Interface

3.2.1. Definition of Interface

The following tables show the pin definition and description of EC25 Mini PCIe on the 52-pin application.
Table 3: Definition of I/O Parameters
Type
IO
DI
DO
OC
PI
PO
EC25_Mini_PCIe_Hardware_Design
Description
Bidirectional
Digital input
Digital output
Open collector
Power input
Power output
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