GW1NS & GW1NSR & GW1NSE & GW1NSER Series of FPGA
Products Schematic Manual
UG292-1.0E
www.gowinsemi.com.en
3
(
15
)
specific is as follows:
Figure 1 Noise Processing
V1P2
Vcc
FB
C
4.7uF
FB is a magnetic bead, and the reference model is MH2029-221Y. The
ceramic capacitance is 4.7uF, and It offers an accuracy of more than ±20%.
JTAG
Overview
JTAG interface is used for downloading the bitstream to SRAM,
on-chip flash or off-chip flash of FPGA.
Signal Description
Table 2 Signal Description
Name
I/O
Description
TCK
I
JTAG serial clock input
TMS
I, internal weak
pull-up
JTAG serial mode input
TDI
I, internal weak
pull-up
JTAG serial data input
TDO
O
JTAG serial data output
JTAG Circuit Reference
Figure 2 JTAG Circuit Reference
R
4.7K
TCK
R
R
R
R
22
22
22
22
VCC3P3
TDI
TDO
TMS
1
3
5
7
9
2
4
6
8
10
JTAG
J
Note!
The resistance accuracy is not less than ±5%;
The power of JTAG 6th pin can be set to VCC1P2, VCC1P5, VCC1P8, VCC2P5 as
required.