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HUAWEI MU739 HSPA+ LGA Module
Hardware Guide
3.10 JTAG Interface
LGA MU739 module provides one JTAG interface (Joint Test Action Group). It is
recommended that set the 5 pins related to JTAG interface as test points on the AP for
tracing and debug.
Table 3-13 Signals on the JTAG interface
Pin
No.
2
8
10
11
12
3.11 RF Antenna Interface
MU739 module provides 2 antenna interfaces for connecting the external antennas.
Table 3-14 Signals on RF Antenna interface
Pin No.
65
72
3.12 Reserved Interface
The module provides 4 reserved pins. All of reserved pins cannot be used by the
customer.
Table 3-15 List of reserved pins
Pin No.
18, 19, 47, 50
Issue 01 (2011-08-24)
Pin Name
I/
O
JTAG_TDO
O
JTAG_TRST_N O
JTAG_TMS
I
JTAG_TDI
I
JTAG_TCK
I
It is suggested that place the above 5 test points on the AP board for debug.
Pin Name
MAIN_ANT
AUX_ANT
Pin Name
Reserved
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Copyright © Huawei Technologies Co., Ltd.
Description of the Application Interfaces
Description
JTAG Serial Data Out
JTAG Reset/Module enable
JTAG State machine control
signal
JTAG Serial Data Input
JTAG clock input
I/O
-
-
I/O
-
DC Characteristics (V)
Min
Typical
-0.3
1.8
-0.3
1.8
-0.3
1.8
-0.3
1.8
-0.3
1.8
Description
Main antenna
Diversity antenna
Description
Reserve
Max
2.1
2.1
2.1
2.1
2.1
37
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