Huawei MC509 CDMA LGA manual General Purpose I/O Interface, Primary Mode, Pin No Description

HUAWEI MC509 CDMA LGA Module
Hardware Guide	Description of the Application Interfaces

Figure 3-14Circuit diagram of the interface of the PCM (MC509 is used as PCM master)

PCM_SYNC: Output when PCM master

PCM_CLK: Output when PCM master

It is recommended that a TVS be used on the related interface, to prevent electrostatic discharge and protect integrated circuit (IC) components.

Data only edition does not support the voice function.

Primary Mode

On Primary mode MU509 provides a 16-bit linear or μ-law, with short-sync and 2.048MHz clock (on the PCM_CLOCK pin).

3.9 General Purpose I/O Interface

The LGA module provides seven channels GPIO pins for customers to applications of controlling signal. Customers can use AT command to control the state of logic levels of eight channels GPIO output signal. See the HUAWEI MC509 CDMA LGA Module AT Command Interface Specification.

Pin No.	Pin	I/O	Description	DC Characteristics (V)
	Name			Min	Type	Max

44，46，51，55，	GPIO I/O General I/O -0.3 2.6 2.9
105，109，113,	pins

Issue 01 (2011-04-08)	Huawei Proprietary and Confidential	40
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