Beckhoff EtherCAT IP Core for Altera FPGAs v3.0.10 Instrukcja Użytkownika Strona 100
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PDI Description
III-88 Slave Controller – IP Core for Altera FPGAs
10.1 Digital I/O Interface
10.1.1 Interface
The Digital I/O PDI is selected with PDI type 0x04. The signals of the Digital I/O interface are
2
:
EtherCAT
IP core
DATA_OUT[31:0]
LATCH_IN
OUTVALID
SOF
OE_EXT
WD_TRIG
DATA_IN[31:0]
I/O[31:0]
DATA_ENA
Figure 33: IP core digital I/O signals
Table 43: IP core digital I/O signals
Signal
Direction
Description
Signal polarity
DATA_OUT[31:0]
OUT
Output data
DATA_IN[31:0]
IN
Input data
LATCH_IN
IN
External data latch signal
act. High
OUTVALID
OUT
Output data is valid/Output event
act. High
SOF
OUT
Start of Frame
act. High
OE_EXT
IN
Output Enable
act. High
WD_TRIG
OUT
Watchdog Trigger
act. High
DATA_ENA
OUT
Enable external Output data driver
act. High
NOTE: Unsupported Digital I/O control signal OE_CONF is assumed to be low.
The Digital I/O PDI supports 1-4 byte of digital I/O signals, with each byte individually configurable as
either input or output. At the IP core interface, the I/O signals are separated in input signals
(DATA_IN) and output signals (DATA_OUT). The corresponding I/O bytes and addresses are listed
below.
Table 44: Input/Output byte reference
I/O
Byte
I/O signal
Output signal
Output
address
Input signal
Input
address
0
I/O[7:0]
DATA_OUT[7:0]
0x0F00
DATA_IN[7:0]
0x1000
1
I/O[15:8]
DATA_OUT[15:8]
0x0F01
DATA_IN[15:8]
0x1001
2
I/O[23:16]
DATA_OUT[23:16]
0x0F02
DATA_IN[23:16]
0x1002
3
I/O[31:24]
DATA_OUT[31:24]
0x0F03
DATA_IN[31:24]
0x1003
2
The prefix `PDI_DIGI_` is added to the Digital I/O interface signals if the EtherCAT IP Core is used.
- ® 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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