ZTE Corporation ZM8300G Manual De Usuario
ZTE ZM8300G Module Hardware User Manual
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37
Pin
Signal
I/O
Description
T7
JTAG_TRST_N
DI-PD
JTAG debug reset signal
3.12.2 Design Points
The ZM8300G module provides a test point pad for the JTAG interface. it is recommended
that customers design a connector (recommended material: PANASONIC: AXE216044D),
with the goal of resolving difficult problems. Figure 3-18 illustrates the recommended
connector circuit, which includes JTAG and DEBUG_URAT debug interfaces. If failing to
design a connector due to limited dimensions, design JTAG and DEBUG_URAT test points on
the system board.
S1
S4
S2
S3
1
3
5
7
9
1
1
1
3
1
5
2
4
6
8
1
0
1
2
1
4
1
6
JTAG_TRST_N
JTAG_TMS
JTAG_TDI
DEBUG_UART_TX
JTAG_PS_HOLD
JTAG_RESOUT_N
JTAG_TCK
JTAG_TDO
VIO
DEBUG_UART_RX
VSYS
0
.1
u
F
0
.1
u
F
Figure 3-18 Circuit for a JTAG/UART Debug Connector
3.13 Antenna Interfaces
3.13.1 Pin Description
The ZM8300G module provides two antenna pads. Table 3-12 describes the two antenna
pads (including the ground points next to the pads).
Table 3-12 Antenna Interfaces
Signal
Pin
Description
Remarks
GND
1
Grounding
MAIN_ANT
2
RF main antenna
interface
50
Ω
GND
3
Grounding