2024年10月28日发(作者:昂英杰)
Feature Descriptions
SGMII GTX Transceiver Clock Generation
[Figure1-2, callout 16]
An Integrated Circuit Systems ICS844021I chip (U2) generates a high-quality, low-jitter, 125MHz
LVDS clock from a 25MHz crystal (X3). This clock is sent to FPGA U1, Bank 113 GTX
transceiver (clock pins AH8 (P) and AH7 (N)) driving the SGMII interface. Series AC coupling
capacitors are present to allow the clock input of the FPGA to set the common mode voltage.
Figure1-17 shows the Ethernet SGMII clock source.
C300
18pF 50V
NPO
VDDA_SGMIICLKVDD_SGMIICLK
U2
X3
25.00 MHz
1
X1
1
SGMIICLK_XTAL_OUT
3
ICS844021I-01
Clock Generator
OE
VDDA
XTAL_OUT
VDD
Q0
5
8
7
SGMIICLK_Q0_C_P
R320
1.0MΩ 5%
C301
18pF 50V
NPO
2
GND2
C28
0.1μF 25V
X5R
SGMIICLK_Q0_P
4
GND2X2
3
SGMIICLK_XTAL_IN
4
2
XTAL_IN
GND
NQ0
6
SGMIICLK_Q0_C_NSGMIICLK_Q0_N
C29
0.1μF 25V
X5R
UG885_c1_17_020612
GND_SGMIICLKGND_SGMIICLK
GND_SGMIICLK
Figure 1-17:Ethernet 125 MHz SGMII GTX Clock
References
Details about the tri-mode Ethernet MAC core are provided in LogiCORE IP Tri-Mode Ethernet
MAC Product Guide for Vivado Design Suite (PG051) [Ref9] and in the LogiCORE IP Tri-Mode
Ethernet MAC v4.5 User Guide (UG138) [Ref13].
The product brief for the Marvell 88E1111 Alaska Gigabit Ethernet Transceiver can be found at the
Marvell website [Ref21].
The data sheet can be obtained under NDA with Marvell. Contact information is at the Marvell
website [Ref21].
For more information about the ICS844021 device, go to the Integrated Device Technology website
[Ref22] and search for part number ICS844021.
USB-to-UART Bridge
[Figure1-2, callout 17]
The VC707 board contains a Silicon Labs CP2103GM USB-to-UART bridge device (U44) which
allows a connection to a host computer with a USB port. The USB cable is supplied in the VC707
Evaluation Kit (Type-A end to host computer, Type mini-B end to VC707 board connector J17). The
CP2103GM is powered by the USB 5V provided by the host PC when the USB cable is plugged into
the USB port on the VC707 board.
Xilinx UART IP is expected to be implemented in the FPGA logic. The FPGA supports the
USB-to-UART bridge using four signal pins: Transmit (TX), Receive (RX), Request to Send (RTS),
and Clear to Send (CTS).
Silicon Labs provides royalty-free Virtual COM Port (VCP) drivers for the host computer. These
drivers permit the CP2103GM USB-to-UART bridge to appear as a COM port to communications
application software (for example, TeraTerm) that runs on the host computer. The VCP device
VC707 Evaluation Board
UG885 (v1.8) February 20, 2019
Feature Descriptions
User SMA
Figure1-28 shows the user SMA circuit.
J33
SMA
Connector
USER SMA GPIO P
GND
J34
SMA
Connector
USER SMA GPIO N
GND
UG885_c1_126_012413
Figure 1-28:User SMA
Table1-26 lists the GPIO Connections to FPGA U1.
Table 1-26:GPIO Connections to FPGA U1
Schematic Net NameI/O StandardGPIO PinFPGA (U1) Pin
Indicator LEDs (Active-High)
AM39
AN39
AR37
AT37
AR35
AP41
AP42
AU39
GPIO_LED_0
GPIO_LED_1
GPIO_LED_2
GPIO_LED_3
GPIO_LED_4
GPIO_LED_5
GPIO_LED_6
GPIO_LED_7
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
DS2.2
DS3.2
DS4.2
DS5.2
DS6.2
DS7.2
DS8.2
DS9.2
CPU Reset Pushbutton Switch
AV40CPU_RESETLVCMOS18SW8.3
Directional Pushbutton Switches
AR40
AU38
AP40
GPIO_SW_N
GPIO_SW_E
GPIO_SW_S
LVCMOS18
LVCMOS18
LVCMOS18
SW3.3
SW4.3
SW5.3
VC707 Evaluation Board
UG885 (v1.8) February 20, 2019
Chapter 1:VC707 Evaluation Board Features
Table 1-28:J37 VITA 57.1 FMC 2 HPC Connections (Cont’d)
I/O U1 FPGA
StandardPin
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
AD32
AD33
Y32
Y33
AE29
AE30
AE32
AE33
AG36
AH36
AD36
AD37
AT16
AU16
BA17
BB17
AV20
AW20
AT20
AT19
AP18
AP17
AN19
AN18
J37
FMC 2
Schematic Net Name
HPC
Pin
E2
E3
E6
E7
E9
E10
E12
E13
E15
E16
E18
E19
E21
E22
E24
E25
E27
E28
E30
E31
E33
E34
E36
E37
E39
FMC2_HPC_HA01_CC_P
FMC2_HPC_HA01_CC_N
FMC2_HPC_HA05_P
FMC2_HPC_HA05_N
FMC2_HPC_HA09_P
FMC2_HPC_HA09_N
FMC2_HPC_HA13_P
FMC2_HPC_HA13_N
FMC2_HPC_HA16_P
FMC2_HPC_HA16_N
FMC2_HPC_HA20_P
FMC2_HPC_HA20_N
FMC2_HPC_HB03_P
FMC2_HPC_HB03_N
FMC2_HPC_HB05_P
FMC2_HPC_HB05_N
FMC2_HPC_HB09_P
FMC2_HPC_HB09_N
FMC2_HPC_HB13_P
FMC2_HPC_HB13_N
FMC2_HPC_HB19_P
FMC2_HPC_HB19_N
FMC2_HPC_HB21_P
FMC2_HPC_HB21_N
VADJ
J37
FMC 2
HPC
Pin
F1
F4
F5
F7
F8
F10
F11
F13
F14
F16
F17
F19
F20
F22
F23
F25
F26
F28
F29
F31
F32
F34
F35
F37
F38
F40
Schematic Net Name
I/O U1 FPGA
StandardPin
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
AF29
AB33
AC33
AB29
AC29
AA31
AA32
AF34
AG34
AE37
AF37
AC35
AC36
AV16
AW16
AU18
AV18
AY20
BA20
AU19
AV19
AR18
AR17
AK17
AL17
FMC2_HPC_PG_M2C
FMC2_HPC_HA00_CC_P
FMC2_HPC_HA00_CC_N
FMC2_HPC_HA04_P
FMC2_HPC_HA04_N
FMC2_HPC_HA08_P
FMC2_HPC_HA08_N
FMC2_HPC_HA12_P
FMC2_HPC_HA12_N
FMC2_HPC_HA15_P
FMC2_HPC_HA15_N
FMC2_HPC_HA19_P
FMC2_HPC_HA19_N
FMC2_HPC_HB02_P
FMC2_HPC_HB02_N
FMC2_HPC_HB04_P
FMC2_HPC_HB04_N
FMC2_HPC_HB08_P
FMC2_HPC_HB08_N
FMC2_HPC_HB12_P
FMC2_HPC_HB12_N
FMC2_HPC_HB16_P
FMC2_HPC_HB16_N
FMC2_HPC_HB20_P
FMC2_HPC_HB20_N
VADJ
VC707 Evaluation Board
UG885 (v1.8) February 20, 2019
Chapter 1:VC707 Evaluation Board Features
VC707 Evaluation Board
UG885 (v1.8) February 20, 2019
Appendix A:Default Switch and Jumper Settings
VC707 Evaluation Board
UG885 (v1.8) February 20, 2019
2024年10月28日发(作者:昂英杰)
Feature Descriptions
SGMII GTX Transceiver Clock Generation
[Figure1-2, callout 16]
An Integrated Circuit Systems ICS844021I chip (U2) generates a high-quality, low-jitter, 125MHz
LVDS clock from a 25MHz crystal (X3). This clock is sent to FPGA U1, Bank 113 GTX
transceiver (clock pins AH8 (P) and AH7 (N)) driving the SGMII interface. Series AC coupling
capacitors are present to allow the clock input of the FPGA to set the common mode voltage.
Figure1-17 shows the Ethernet SGMII clock source.
C300
18pF 50V
NPO
VDDA_SGMIICLKVDD_SGMIICLK
U2
X3
25.00 MHz
1
X1
1
SGMIICLK_XTAL_OUT
3
ICS844021I-01
Clock Generator
OE
VDDA
XTAL_OUT
VDD
Q0
5
8
7
SGMIICLK_Q0_C_P
R320
1.0MΩ 5%
C301
18pF 50V
NPO
2
GND2
C28
0.1μF 25V
X5R
SGMIICLK_Q0_P
4
GND2X2
3
SGMIICLK_XTAL_IN
4
2
XTAL_IN
GND
NQ0
6
SGMIICLK_Q0_C_NSGMIICLK_Q0_N
C29
0.1μF 25V
X5R
UG885_c1_17_020612
GND_SGMIICLKGND_SGMIICLK
GND_SGMIICLK
Figure 1-17:Ethernet 125 MHz SGMII GTX Clock
References
Details about the tri-mode Ethernet MAC core are provided in LogiCORE IP Tri-Mode Ethernet
MAC Product Guide for Vivado Design Suite (PG051) [Ref9] and in the LogiCORE IP Tri-Mode
Ethernet MAC v4.5 User Guide (UG138) [Ref13].
The product brief for the Marvell 88E1111 Alaska Gigabit Ethernet Transceiver can be found at the
Marvell website [Ref21].
The data sheet can be obtained under NDA with Marvell. Contact information is at the Marvell
website [Ref21].
For more information about the ICS844021 device, go to the Integrated Device Technology website
[Ref22] and search for part number ICS844021.
USB-to-UART Bridge
[Figure1-2, callout 17]
The VC707 board contains a Silicon Labs CP2103GM USB-to-UART bridge device (U44) which
allows a connection to a host computer with a USB port. The USB cable is supplied in the VC707
Evaluation Kit (Type-A end to host computer, Type mini-B end to VC707 board connector J17). The
CP2103GM is powered by the USB 5V provided by the host PC when the USB cable is plugged into
the USB port on the VC707 board.
Xilinx UART IP is expected to be implemented in the FPGA logic. The FPGA supports the
USB-to-UART bridge using four signal pins: Transmit (TX), Receive (RX), Request to Send (RTS),
and Clear to Send (CTS).
Silicon Labs provides royalty-free Virtual COM Port (VCP) drivers for the host computer. These
drivers permit the CP2103GM USB-to-UART bridge to appear as a COM port to communications
application software (for example, TeraTerm) that runs on the host computer. The VCP device
VC707 Evaluation Board
UG885 (v1.8) February 20, 2019
Feature Descriptions
User SMA
Figure1-28 shows the user SMA circuit.
J33
SMA
Connector
USER SMA GPIO P
GND
J34
SMA
Connector
USER SMA GPIO N
GND
UG885_c1_126_012413
Figure 1-28:User SMA
Table1-26 lists the GPIO Connections to FPGA U1.
Table 1-26:GPIO Connections to FPGA U1
Schematic Net NameI/O StandardGPIO PinFPGA (U1) Pin
Indicator LEDs (Active-High)
AM39
AN39
AR37
AT37
AR35
AP41
AP42
AU39
GPIO_LED_0
GPIO_LED_1
GPIO_LED_2
GPIO_LED_3
GPIO_LED_4
GPIO_LED_5
GPIO_LED_6
GPIO_LED_7
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
DS2.2
DS3.2
DS4.2
DS5.2
DS6.2
DS7.2
DS8.2
DS9.2
CPU Reset Pushbutton Switch
AV40CPU_RESETLVCMOS18SW8.3
Directional Pushbutton Switches
AR40
AU38
AP40
GPIO_SW_N
GPIO_SW_E
GPIO_SW_S
LVCMOS18
LVCMOS18
LVCMOS18
SW3.3
SW4.3
SW5.3
VC707 Evaluation Board
UG885 (v1.8) February 20, 2019
Chapter 1:VC707 Evaluation Board Features
Table 1-28:J37 VITA 57.1 FMC 2 HPC Connections (Cont’d)
I/O U1 FPGA
StandardPin
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
AD32
AD33
Y32
Y33
AE29
AE30
AE32
AE33
AG36
AH36
AD36
AD37
AT16
AU16
BA17
BB17
AV20
AW20
AT20
AT19
AP18
AP17
AN19
AN18
J37
FMC 2
Schematic Net Name
HPC
Pin
E2
E3
E6
E7
E9
E10
E12
E13
E15
E16
E18
E19
E21
E22
E24
E25
E27
E28
E30
E31
E33
E34
E36
E37
E39
FMC2_HPC_HA01_CC_P
FMC2_HPC_HA01_CC_N
FMC2_HPC_HA05_P
FMC2_HPC_HA05_N
FMC2_HPC_HA09_P
FMC2_HPC_HA09_N
FMC2_HPC_HA13_P
FMC2_HPC_HA13_N
FMC2_HPC_HA16_P
FMC2_HPC_HA16_N
FMC2_HPC_HA20_P
FMC2_HPC_HA20_N
FMC2_HPC_HB03_P
FMC2_HPC_HB03_N
FMC2_HPC_HB05_P
FMC2_HPC_HB05_N
FMC2_HPC_HB09_P
FMC2_HPC_HB09_N
FMC2_HPC_HB13_P
FMC2_HPC_HB13_N
FMC2_HPC_HB19_P
FMC2_HPC_HB19_N
FMC2_HPC_HB21_P
FMC2_HPC_HB21_N
VADJ
J37
FMC 2
HPC
Pin
F1
F4
F5
F7
F8
F10
F11
F13
F14
F16
F17
F19
F20
F22
F23
F25
F26
F28
F29
F31
F32
F34
F35
F37
F38
F40
Schematic Net Name
I/O U1 FPGA
StandardPin
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
LVCMOS18
AF29
AB33
AC33
AB29
AC29
AA31
AA32
AF34
AG34
AE37
AF37
AC35
AC36
AV16
AW16
AU18
AV18
AY20
BA20
AU19
AV19
AR18
AR17
AK17
AL17
FMC2_HPC_PG_M2C
FMC2_HPC_HA00_CC_P
FMC2_HPC_HA00_CC_N
FMC2_HPC_HA04_P
FMC2_HPC_HA04_N
FMC2_HPC_HA08_P
FMC2_HPC_HA08_N
FMC2_HPC_HA12_P
FMC2_HPC_HA12_N
FMC2_HPC_HA15_P
FMC2_HPC_HA15_N
FMC2_HPC_HA19_P
FMC2_HPC_HA19_N
FMC2_HPC_HB02_P
FMC2_HPC_HB02_N
FMC2_HPC_HB04_P
FMC2_HPC_HB04_N
FMC2_HPC_HB08_P
FMC2_HPC_HB08_N
FMC2_HPC_HB12_P
FMC2_HPC_HB12_N
FMC2_HPC_HB16_P
FMC2_HPC_HB16_N
FMC2_HPC_HB20_P
FMC2_HPC_HB20_N
VADJ
VC707 Evaluation Board
UG885 (v1.8) February 20, 2019
Chapter 1:VC707 Evaluation Board Features
VC707 Evaluation Board
UG885 (v1.8) February 20, 2019
Appendix A:Default Switch and Jumper Settings
VC707 Evaluation Board
UG885 (v1.8) February 20, 2019