Beckhoff EtherCAT IP Core for Altera FPGAs v3.0.10 Uživatelský manuál stáhnout pdf (Strana 92)

Ethernet Interface

III-80 Slave Controller – IP Core for Altera FPGAs

9.2.4 MII example schematic

Refer to chapter 8.5 for more information on special markings (!). Take care of proper compensation of

the TX_CLK phase shift.

EtherCAT IP Core

Ethernet PHY

MII_RX_DV

MII_RX_DATA[3:0]

MII_RX_ERR

MII_TX_ENA

MII_TX_DATA[3:0]

MII_RX_CLK

RX_DV

RXD[3:0]

RX_ER

TX_EN

TXD[3:0]

RX_CLK

TX_CLK

CLK25

CRS

TX_ER

COL

nMII_LINK LINK_STATUS

! optional

CLK25

PLL

CLK_IN CLK25

CLK100

25 MHz

MII_TX_CLK

! optional

MII_TX_SHIFT[1:0]

00/01/10/11

NPHY_RESET_OUT

NRESET

4K7

Figure 28: MII example schematic

1 2 ... 87 88 89 90 91 92 93 94 95 96 97 ... 140 141

® FPGAs 1
1 Overview 13
EtherCAT IP Core 14
Table 4: Release notes 18
Figure 3: Design flow 25
2 Features and Registers 28
(0x0108:0x0109) 29
Table 8: Legend 30
IP Core 31
V3.0.10 31
Table 10: Legend 33
3 IP Core Installation 38
Figure 5: License Setup 40
4 IP Core Usage 43
5 IP Core Configuration 44
Figure 8: Documentation 45
Figure 9: Product ID tab 46
09) is available if checked 51
6 Example Designs 61
7 FPGA Resource Consumption 69
8 IP Core Signals 71
CLK25_2NS 72
Table 20: SII EEPROM Signals 73
Table 21: LED Signals 73
PHY Management 75
Table 24: PHY Interface MII 76
Table 25: PHY Interface RMII 78
Table 28: Digital I/O PDI 82
Table 29: SPI PDI 83
Table 30: 8/16 Bit µC PDI 83
Table 31: 8 Bit µC PDI 83
Table 32: 16 Bit µC PDI 84
Table 33: Avalon PDI 84
Table 34: AXI3 PDI 85
9 Ethernet Interface 86
Ethernet PHY 87
RX_D[3:0] 91
10 PDI Description 99
Digital output pins 102
LATCH_IN 104
Figure 39: OUT_ENA timing 105
Table 46: SPI signals 106
Table 47: Address modes 107
SPI_DO (MISO) 112
SPI_DI (MOSI) 112
SPI_CLK* 112
SPI mode 1/3 SPI mode 0/2 113
PDI Description 114
16 bit µController, async 119
EtherCAT device 119
8 bit µController, async 120
(with preceding write access) 122
DATA0 DATA1 DATA2 DATA3 128
ADR+1 ADR+3ADR+2 128
Figure 57: AXI3 signals 129
Table 59: AXI3 signals 129
Figure 58: AXI Read Access 133
Figure 59: AXI Write Access 133
Output event time 134
Table 63: I²C EEPROM signals 135
Table 65: AC Characteristics 136
Table 66: Forwarding Delays 136
14 Synthesis Constraints 137
Synthesis Constraints 138
Synthesis Constraints 139
15 Appendix 141

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