General Purpose I/O Interface; Jtag Interface - Huawei MC509 Series Hardware Manual

HUAWEI MC509 Series CDMA LGA Module
Hardware Guide

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
AT Command Interface
Pin No.
44, 46, 51, 55, 105,
109, 113,

3.10 JTAG Interface

LGA MC509 module provides one JTAG interface (Joint Test Action Group). Set the
pins in the following table as the test pins. And place the test points in the DTE for
debugging.
Pin No. Pin Name
30
36
42
72
87
93
14
31
100
Issue 02 (2013-05-06)
Specification.
Pin
Name
GPIO
JTAG_TMS
JTAG_TRST_N
JTAG_TCK
JTAG_TDO
JTAG_TDI
JTAG_RTCK
PS_HOLD
VCC_EXT2
RESIN_N
It is recommended that set the 9 pins related to JTAG interface as test points on the DTE for
tracing and debugging.
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Copyright © Huawei Technologies Co., Ltd.
Description of the Application Interfaces
HUAWEI MC509 CDMA LGA Module
I/O Description
General I/O pins –0.3
I/O
I/O Description
I JTAG Test mode
select
I JTAG reset.
I JTAG clock input
JTAG test data
O
output
I JTAG test data
input
O JTAG return clock
I Used for JTAG
interfaces
assigning a test
point for it.
O 2.6V POWER
output
I Reset module
DC Characteristics (V)
Min. Typ. Max.
2.6 2.9
DC Characteristics (V)
Min. Typ. Max.
–0.3
2.6 2.9
–0.3
2.6 2.9
–0.3
2.6 2.9
–0.3
2.6 2.9
–0.3
2.6 2.9
–0.3
2.6 2.9
- 1.8 -
- 2.6 -
–0.3
1.8 2.1
43