2 Development Board Description
2.6 Development Board Specification
DBUG398-1.1E
7(25)
2.6
Development Board Specification
Table 2-1 Development Board Specification
No. Item
Functional Description
Technical Condition
Note
1
FPGA
Core chip
–
–
2
Download
Interface
Supports USB interface;
Supports JTAG,
AUTOBOOT, MSPI
USB-JTAG module on
board
–
3
Power Supply
Provides DC 5V input;
3.3 V, 2.5V and 1.2 V
output via LDO circuit
Input power: 5V
Provides power for
FPGA, download circuit
and other circuits via
5V–3.3 V circuit;
Provides power for
FPGA via 5V–2.5V
circuit;
Provides power to
FPGA core via 3.3 V–
1.2 V circuit.
–
4
Slide Switches
Available for testing
4
–
5
Key Switches
Available for testing
4
–
6
Reset button
Reset for FPGA
1
–
7
LED
Test indicator, DONE
indicator, and Power
indicator
Four Test indicator,
green
One DONE indicator,
green
One Power indicator,
green
–
8
Crystal Oscillator
Provides 50MHz clock
for FPGA
Package5032
–
9
External Clock
Input external clock
frequency via SMA, used
for testing
–
–
10
GPIO
I/O, convenient for user
extension and test
76; Can be adjusted to
3.3V, 2.5V, and 1.2V
IO voltage
–
11
LVDS
LVDS, used for testing
Ten pairs
–
12
Protection
USB interface: ESD
protection;
Power interface: Inverse
current and over current
protection
USB interface ESD
protection: ±15kV
non-contact discharge,
± 8kV contact
discharge;
Schottky diode is
–