A.3
N1-SoC JTAG connector
There is one 20-pin JTAG box header connector on the back panel.
The I/O voltage of the JTAG connector is 1V8.
The following table shows the pin mapping of the P-JTAG connector.
Table A-7 N1-SoC P-JTAG connector signal list
Pin Signal
Pin Signal
1
VTREF
2
No connection
3
nTRST
4
GND
5
TDI
6
GND
7
TMS
8
GND
9
TCK
10
GND
11
RTCK
12
GND
13
TDO
14
GND
15
nSRSTI
16
GND
17
DBGRQ
18
GND
19
DBGACK
20
GND
Note
• Pin 1 is the lower left pin of the connector. Pin 2 is the upper left pin of the connector.
• Pins 1, 5, 7, 13, 15, and 19 have pullup resistors to 1V8.
• Pins 3, 9, 11, and 17 have pulldown resistors to
GND
.
Related information
1.3 The N1 SDP at a glance
A Signal descriptions
A.3 N1-SoC JTAG connector
101489_0000_02_en
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