44
HPS_ENET_TX_DATA[1]
PIN_J19
MII transmit data[1]
3.3V
HPS_ENET_TX_DATA[2]
PIN_F21
MII transmit data[2]
3.3V
HPS_ENET_TX_DATA[3]
PIN_F19
MII transmit data[3]
3.3V
HPS_ENET_RX_DV
PIN_K17
GMII and MII receive data valid
3.3V
HPS_ENET_RX_DATA[0]
PIN_A21
GMII and MII receive data[0]
3.3V
HPS_ENET_RX_DATA[1]
PIN_B20
GMII and MII receive data[1]
3.3V
HPS_ENET_RX_DATA[2]
PIN_B18
GMII and MII receive data[2]
3.3V
HPS_ENET_RX_DATA[3]
PIN_D21
GMII and MII receive data[3]
3.3V
HPS_ENET_RX_CLK
PIN_G20
GMII and MII receive clock
3.3V
HPS_ENET_RESET_N
PIN_E18
Hardware Reset Signal
3.3V
HPS_ENET_MDIO
PIN_E21
Management Data
3.3V
HPS_ENET_MDC
PIN_B21
Management Data Clock Reference
3.3V
HPS_ENET_INT_N
PIN_C19
Interrupt Open Drain Output
3.3V
HPS_ENET_GTX_CLK
PIN_H19
GMII Transmit Clock
3.3V
Additionally, the Ethernet PHY (KSZ9021RNI) LED status has been set to two LED mode. The
LED control signals are connected to LEDs (yellow and green) on the RJ45 connector. States and
definitions can be found in
Table 3-28,
which can display the current status of the Ethernet. For
example once the green LED lights on , the board has been connected to Giga bit Ethernet.
Table 3-28 LED Mode-Pin Definition
LED (State)
LED (Definition)
Link /Activity
LEDG
LEDY
LEDG
LEDY
H
H
OFF
OFF
Link off
L
H
ON
OFF
1000 Link / No Activity
Toggle
H
Blinking
OFF
1000 Link / Activity (RX, TX)
H
L
OFF
ON
100 Link / No Activity
H
Toggle
OFF
Blinking
100 Link / Activity (RX, TX)
L
L
ON
ON
10 Link/ No Activity
Toggle
Toggle
Blinking
Blinking
10 Link / Activity (RX, TX)
3
3
.
.
7
7
.
.
3
3
U
U
A
A
R
R
T
T
The board has one UART interface connected for communication with the HPS. This interface
wouldn’t support HW flow control signals. The physical interface is done using UART-USB
onboard bridge from an FT232R chip and connects to the host using an USB Mini-B connector. For
detailed information on how to use the transceiver, please refer to the datasheet, which is available
on the manufacturer’s website, or in the Datasheets\UART TO USB folder on the DE1-SoC System
CD.
Figure 3-31
shows the related schematics, and
Table 3-29
lists the pin assignments of HPS in
Cyclone V SoC FPGA.
Summary of Contents for DE1-SOC
Page 1: ...1...
Page 108: ...107 Figure 8 4 Select Devices Page...