Altera RapidIO II MegaCore Function Manuel d'utilisateur Page 174
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Noté. / 5. Basé sur avis des utilisateurs
6–36 Chapter 6: Software Interface
Transport and Logical Layer Registers
RapidIO II MegaCore Function August 2014 Altera Corporation
User Guide
Transmit Port-Write Registers
Table 6–45 through Table 6–47 describe the transmit port-write registers.
Refer to “Handling Port-Write Transactions” on page 4–36 for information about
using these registers to transmit a port-write.
Table 6–43. Tx Maintenance Mapping Window n Offset—Offset: 0x10108, 0x10118
Field Bits Access Function Default
RSRV
[31:24] RO Reserved
8'h0
OFFSET
[23:0] RW Window offset
24'h0
Table 6–44. Tx Maintenance Mapping Window n Control—Offset: 0x1010C, 0x1011C
Field Bits Access Function Default
LARGE_DESTINATION_ID
(MSB)
[31:24]
RO Reserved if the system does not support 16-bit device ID.
8'h0
RW
MSB of the Destination ID if the system supports 16-bit
device ID.
DESTINATION_ID
[23:16] RW Destination ID
8'h0
HOP_COUNT
[15:8] RW Hop count
8'hFF
PRIORITY
[7:6] RW
Packet priority.
2’b11 is not a valid value for the
PRIORITY
field. Any attempt
to write 2’b11 to this field is overwritten with 2’b10.
2'b00
RSRV
[5:0] RO Reserved
6'h0
Table 6–45. Tx Port Write Control—Offset: 0x10200
Field Bits Access Function Default
LARGE_DESTINATION_ID
(MSB)
[31:24]
RO Reserved if the system does not support 16-bit device ID.
8'h0
RW
MSB of the Destination ID if the system supports 16-bit
device ID.
DESTINATION_ID
[23:16] RW Destination ID
8'h0
RSRV
[15:8] RO Reserved
8'h00
PRIORITY
[7:6] RW
Request packet’s priority.
2’b11 is not a valid value for the
priority
field. An attempt
to write 2’b11 to this field is overwritten as 2’b10.
2'b00
SIZE
[5:2] RW
Packet payload size in number of double words. If set to 0,
the payload size is single word. If
size
is set to a value
larger than 8, the
payload
size is 8 double words (64 bytes).
4'h0
RSRV
[1] RO Reserved
1'b0
PACKET_READY
[0] RW
Write 1 to start transmitting the port-write request. This bit
is cleared internally after the packet has been transferred to
the Transport layer to be forwarded to the Physical layer for
transmission.
1'b0
- User Guide 1
- RapidIO II MegaCore Function 1
- Contents 3
- Contents v 5
- Chapter 5. Signals 6
- Chapter 6. Software Interface 6
- Chapter 7. Testbench 6
- 1. About The RapidIO II 9
- MegaCore Function 9
- Releases 10
- RapidIO II IP Core Features 10
- Features 11
- Device Family Support 12
- IP Core Verification 13
- Hardware Testing 14
- Interoperability Testing 14
- Note to Table 1–3: 16
- Notes to Table 1–4: 16
- Installation and Licensing 17
- 2. Getting Started 19
- Simulating IP Cores 22
- Transceiver Settings 26
- External Transceiver PLL 26
- 3. Parameter Settings 31
- Note to Table 3–1: 32
- Enable 16-Bit Device ID Width 33
- Logical Layer Settings 34
- Capability Registers Settings 35
- Device ID 36
- Vendor ID 36
- Revision ID 36
- Assembly ID 36
- Assembly Information CAR 37
- Enable Flow Control Support 38
- Enable Switch Support 38
- Number of Ports 38
- Port Number 39
- Maximum PDU 39
- Destination Operations CAR 40
- Port General Control CSR 40
- Port 0 Control CSR 41
- Lane n Status 0 CSR 41
- Extended Features Pointer CSR 41
- 4. Functional Description 43
- Note to Table 4–2: 44
- Clocking and Reset Structure 45
- Notes to Table 4–3: 46
- RapidIO II 47
- Transactions 55
- Notes to Table 4–6: 57
- Notes to Table 4–7: 59
- Note to Table 4–8: 59
- Note to Figure 4–9: 66
- Note to Table 4–10: 70
- Notes to Table 4–11: 71
- Table 6–60 on page 6–40 72
- Note to Table 4–12: 73
- Maintenance Module 74
- Maintenance Interface Signals 75
- Doorbell Module Block Diagram 86
- Preserving Transaction Order 87
- Doorbell Module Signals 88
- Generating a Doorbell Message 88
- Receiving a Doorbell Message 89
- Transaction ID Ranges 90
- Notes to Table 4–24: 92
- Note to Table 4–26: 94
- Note to Table 4–27: 95
- field 97
- User Receiving Write Request 100
- Logical Layer Interfaces 101
- Transport Layer 112
- Receiver 113
- Transmitter 114
- Physical Layer 115
- Physical Layer Interfaces 116
- Low-level Interface Receiver 116
- CRC Checking and Removal 117
- Protocol Violations 119
- Fatal Errors 119
- Maintenance Avalon-MM Slave 120
- Maintenance Avalon-MM Master 121
- Port-Write Reception Module 122
- Input/Output Avalon-MM Slave 122
- Input/Output Avalon-MM Master 123
- 5. Signals 125
- Physical Layer Signals 126
- Low Latency Signals 127
- Multicast Event Signals 128
- Chapter 5: Signals 5–5 129
- Note to Table 5–7: 130
- Chapter 5: Signals 5–7 131
- 5–8 Chapter 5: Signals 132
- Register-Related Signals 133
- Avalon-MM Interface Signals 133
- Note to Table 5–12: 134
- Chapter 5: Signals 5–11 135
- Note to Table 5–15: 136
- Error Reporting Signals 137
- 5–14 Chapter 5: Signals 138
- 6. Software Interface 139
- Memory Map 140
- Physical Layer Registers 144
- Note to Table 6–9: 147
- Note to Table 6–14: 154
- Note to Table 6–15: 158
- Note to Table 6–17: 160
- Note to Table 6–22: 164
- Note to Table 6–23: 164
- Note to Table 6–24: 165
- Note to Table 6–25: 165
- Note to Table 6–26: 166
- Note to Table 6–27: 167
- Notes to Table 6–28: 168
- Notes to Table 6–29: 169
- Note to Table 6–30: 169
- Note to Table 6–31: 169
- Notes to Table 6–32: 170
- Note to Table 6–34: 171
- Note to Table 6–35: 171
- Note to Table 6–36: 172
- Note to Table 6–37: 172
- Transmit Port-Write Registers 174
- Receive Port-Write Registers 175
- Note to Table 6–59: 178
- Error Management Registers 180
- Note to Table 6–66: 181
- Notes to Table 6–67: 183
- Notes to Table 6–70: 185
- Notes to Table 6–71: 185
- Doorbell Message Registers 191
- Note to Table 6–89: 193
- 7. Testbench 195
- 7–2 Chapter 7: Testbench 196
- Testbench Overview 196
- Testbench Sequence 197
- 7–4 Chapter 7: Testbench 198
- Chapter 7: Testbench 7–5 199
- SWRITE Transactions 200
- NREAD Transactions 200
- NWRITE_R Transactions 201
- NWRITE Transactions 202
- Doorbell Transactions 202
- Port-Write Transactions 203
- Testbench Completion 204
- Chapter 7: Testbench 7–11 205
- 7–12 Chapter 7: Testbench 206
- A. Initialization Sequence 207
- MegaCore Function v12.1 209
- Additional Information 213
- Info–2 Additional Information 214
- Document Revision History 214
- Additional Information Info–3 215
- Info–4 Additional Information 216
- Note to Table: 217
- Info–6 Additional Information 218
- Typographic Conventions 218
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