Altera RapidIO MegaCore Function Bedienungsanleitung Seite 155
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Chapter 6: Software Interface 6–23
Transport and Logical Layer Registers
August 2014 Altera Corporation RapidIO MegaCore Function
User Guide
WRITE_OUT_OF_BOUNDS
[1] RW1C
Write request address out of bounds. Asserted when the
Avalon-MM address does not fall within any enabled
address mapping windows.
1'b0
READ_OUT_OF_BOUNDS
[0] RW1C
Read request address out of bounds.
Asserted when the Avalon-MM address does not fall
within any enabled address mapping windows.
1'b0
Table 6–46. Input/Output Slave Interrupt—Offset: 0x10500 (Part 2 of 2)
Field Bits Access Function Default
Table 6–47. Input/Output Slave Interrupt Enable—Offset: 0x10504
Field Bits Access Function Default
RSRV
[31:5] RO Reserved
27'h0
NWRITE_RS_COMPLETED
[4] RW NWRITE_Rs-completed field enable.
1'b0
INVALID_WRITE_BYTEENABLE
[3] RW Write byte enable invalid interrupt enable
1'b0
INVALID_WRITE_BURSTCOUNT
[2] RW Write burst count invalid interrupt enable
1'b0
WRITE_OUT_OF_BOUNDS
[1] RW Write request address out of bounds interrupt enable
1'b0
READ_OUT_OF_BOUNDS
[0] RW Read request address out of bounds interrupt enable
1'b0
Table 6–48. Input/Output Slave Pending NWRITE_R Transactions—Offset: 0x10508
Field Bits Access Function Default
RSRV
[31:5] RO Reserved
27'h0
PENDING_NWRITE_RS
[4:0] RO
Number of pending NWRITE_R write requests that
have been initiated in the I/O Avalon-MM slave Logical
layer module but have not yet completed. The value in
this field might update only after a delay of 8 Avalon
clock cycles after the start of the write burst on the
Avalon-MM interface.
5'b0
Table 6–49. Input/Output Slave Avalon-MM Write Transactions—Offset: 0x1050C
Field Bits Access Function Default
RSRV
[31:16] RO Reserved
16'h0
STARTED_WRITES
[15:0] RO
Number of write transfers initiated on Avalon-MM
Input/Output Slave port so far. Count increments on
first system clock cycle in which the
io_s_wr_write
and
io_s_wr_chipselect
signals are asserted and
the
io_s_wr_waitrequest
signal is not asserted.
This counter rolls over to 0 after its maximum value.
16'b0
- User Guide 1
- RapidIO MegaCore Function 1
- Contents 3
- Contents v 5
- Chapter 5. Signals 6
- Chapter 6. Software Interface 6
- Chapter 7. Testbenches 6
- Releases 10
- RapidIO IP Core Features 10
- Features 11
- Device Family Support 12
- Note to Table 1–2: 13
- Interoperability Testing 14
- Note to Table 1–4: 16
- Notes to Table 1–7: 18
- Notes to Table 1–8: 19
- Installation and Licensing 20
- 2. Getting Started 23
- Simulating IP Cores 26
- Calibration Clock 27
- Transceiver Settings 28
- IV GX Variations 28
- External Transceiver PLL 29
- Specifying Constraints 30
- Variations 32
- Core Instances 34
- Mode Selection 37
- Transceiver Selection 38
- Baud Rate 39
- Reference Clock Frequency 39
- Receive Buffer Size 39
- Transmit Buffer Size 39
- Enable 16-Bit Device ID Width 40
- Destination ID Checking 40
- Maintenance Logical Layer 41
- Port Write Tx Enable 42
- Port Write Rx Enable 42
- Avalon-MM Master 43
- Avalon-MM Slave 43
- Doorbell Slave 43
- Device ID 44
- Vendor ID 44
- Revision ID 44
- Processing Element Features 45
- Switch Support 45
- Enable Switch Support 46
- Number of Ports 46
- Port Number 46
- Source Operation 46
- Destination Operation 46
- 4. Functional Description 47
- Interfaces 48
- Avalon System Clock 49
- Reference Clock 50
- Other Input Clocks 51
- Clock Domains 51
- Notes to Figure 4–2: 52
- Notes to Table 4–2: 52
- Reset for RapidIO IP Cores 53
- Reset Controller 54
- Clocking and Reset Structure 55
- Physical Layer 56
- Physical Layer Architecture 57
- Receiver Transceiver 58
- CRC Checking and Removal 58
- Transmitter Transceiver 59
- Physical Layer Receive Buffer 60
- Transport Layer 65
- Receiver 66
- Transaction ID Ranges 67
- Concentrator Register Module 69
- Maintenance Module 72
- Maintenance Register 74
- Maintenance Slave Processor 74
- Maintenance Master Processor 76
- Port-Write Processor 78
- Registers Location 81
- Transactions 82
- Notes to Table 4–8: 84
- Notes to Table 4–9: 85
- Note to Figure 4–22: 91
- Notes to Table 4–11: 95
- Notes to Table 4–12: 96
- Note to Table 4–13: 96
- Notes to Table 4–14: 97
- Doorbell Module Block Diagram 99
- Preserving Transaction Order 100
- Doorbell Message Generation 101
- Doorbell Message Reception 102
- Note to Figure 4–30: 103
- 29’hb4b5959 104
- CRC field is not removed 105
- Note to Table 4–15: 105
- Logical Layer Modules 106
- Protocol Violations 108
- Fatal Errors 108
- Maintenance Avalon-MM Slave 109
- Maintenance Avalon-MM Master 110
- Port-Write Reception Module 111
- Input/Output Avalon-MM Slave 111
- Input/Output Avalon-MM Master 112
- Note to Table 5–2: 115
- 5–2 Chapter 5: Signals 116
- Physical Layer Signals 116
- Multicast Event Signals 117
- Note to Table 5–6: 118
- Notes to Table 5–7: 118
- Chapter 5: Signals 5–5 119
- 5–6 Chapter 5: Signals 120
- Notes to Table 5–8: 121
- 5–8 Chapter 5: Signals 122
- Chapter 5: Signals 5–9 123
- Register-Related Signals 124
- Avalon-MM Interface Signals 124
- Chapter 5: Signals 5–11 125
- 4x variations 126
- 2x and 4x variations 126
- Chapter 5: Signals 5–13 127
- Note to Table 5–19: 128
- Notes to Table 5–20: 129
- 5–16 Chapter 5: Signals 130
- Notes to Table 5–21: 131
- 5–18 Chapter 5: Signals 132
- 6. Software Interface 133
- Physical Layer Registers 136
- Note to Table 6–10: 141
- Note to Table 6–11: 143
- Note to Table 6–12: 143
- Note to Table 6–13: 144
- Note to Table 6–14: 144
- Note to Table 6–15: 144
- Note to Table 6–16: 145
- Note to Table 6–17: 145
- Notes to Table 6–18: 146
- Notes to Table 6–19: 147
- Note to Table 6–22: 148
- Note to Table 6–23: 148
- Note to Table 6–24: 148
- Receive Maintenance Registers 149
- Transmit Port-Write Registers 150
- Receive Port-Write Registers 151
- Note to Table 6–45: 154
- Note to Table 6–51: 156
- Doorbell Message Registers 158
- Note to Table 6–63: 160
- 7. Testbenches 163
- 7–2 Chapter 7: Testbenches 164
- Chapter 7: Testbenches 7–3 165
- 7–4 Chapter 7: Testbenches 166
- SWRITE Transactions 167
- NWRITE_R Transactions 168
- NWRITE Transactions 169
- NREAD Transactions 170
- Doorbell Transactions 170
- Chapter 7: Testbenches 7–9 171
- Port-Write Transactions 172
- Chapter 7: Testbenches 7–11 173
- 7–12 Chapter 7: Testbenches 174
- 8. Qsys Design Example 175
- Running Qsys 177
- Adding the Master I/O BFM 181
- Adding the On-Chip Memory 182
- Connecting Unconnected Clocks 183
- Connecting System Components 183
- Generating the System 185
- Simulating the System 186
- A. Initialization Sequence 187
- Additional Information 193
- Info–2 Additional Information 194
- Document Revision History 194
- Additional Information Info–3 195
- Info–4 Additional Information 196
- Note to Table: 197
- Typographic Conventions 198
- Info–6 Additional Information 198
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