3 Development Board Circuit
3.3 Power Supply
DBUG388-1.1E
11(21)
3.2.5
Pinout
Table 3-1 FPGA Download Pinout
Signal Name
Pin No.
BANK
Description
I/O Level
TMS
6
0
JTAG Signal
3.3V/2.5V/1.2V
TCK
7
0
JTAG Signal
3.3V/2.5V/1.2V
TDI
3
0
JTAG Signal
3.3 V/2.5V/1.2V
TDO
4
0
JTAG Signal
3.3V/2.5V /1.2V
MODE0
10
0
Mode selection pin
3.3V/2.5V/1.2V
JTAGSEL_N
8
0
JTAGSEL_N
3.3V/2.5V/1.2V
DONE
9
0
One DONE indicator
3.3V/2.5V/1.2V
3.3
Power Supply
3.3.1
Overview
DC5V is input by USB interface. The TI LDO power supply chip is used
to step down voltage from 5V to 3.3V, 2.5V, 1.8V and 1.2V, which can meet
the power demand of the development board.
3.3.2
Power System Distribution
Figure 3-3 Power System Distribution
USB
Interface
DC5V Input
TPS7A7001
LDO
1.2V
TPS7A7001
LDO
3.3V
TPS7A7001
LDO
2.5V
USB2JTAG
(
FT232
)
UART&KEY&LED&
RST&CLK
FPGA VCCX
VCCO2(LVDS)
FPGA VCCO0&1
(
LVDS
)
FPGA VCC
FPGA VCCO2
VCCO0&1
(MIPI)
TPS7A7001
LDO
1.8V
FPGA VCCO3
FPGA VCCO0&1
(Flash)
Содержание DK START GW1NSR-LV4CQN48PC7I6 V 1.1
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