VCU1287 Characterization Board
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26
UG1121 (v1.0) December 11, 2015
Chapter 3:
Board Component Descriptions
The connections of these signals between the FPGA and the CP2105 are listed in
Table 3-6
.
The bridge device also provides as many as four GPIO signals that can be defined for status
and control information (
Table 3-7
).
The second port of the CP2105 USB-to-dual UART is connected to the onboard system
controller. See
Appendix D, System Controller
.
Table 3-6:
FPGA to UART Connection
FPGA(U1)
Schematic Net
Name
Device(U32)
Pin
Function
Direction
IOSTANDARD
Pin
Function
Direction
BA12
RTS
Output
LVCMOS18
UART_CTS_I_B
18
CTS
Input
BB12
CTS
Input
LVCMOS18
UART_RTS_O_B
19
RTS
Output
BF13
TX
Output
LVCMOS18
UART_RXD_I
20
RXD
Input
BF14
RX
Input
LVCMOS18
UART_TXD_O
21
TXD
Output
Table 3-7:
CP2105 USB-to-UART Bridge User GPIO
FPGA(U1)
Schematic Net
Name
Device(U32)
Pin
Function
Direction
IOSTANDARD
Pin
Function
Direction
AY15
SelectIO
IN/OUT
LVCMOS18
UART_GPIO_0
24
GPIO
IN/OUT
AV13
SelectIO
IN/OUT
LVCMOS18
UART_GPIO_1
23
GPIO
IN/OUT
AR15
SelectIO
IN/OUT
LVCMOS18
UART_GPIO_2
22
GPIO
IN/OUT
AR16
SelectIO
IN/OUT
LVCMOS18
UART_GPIO_3
15
GPIO
IN/OUT
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