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August 2014 Altera Corporation RapidIO II MegaCore Function
User Guide
A. Initialization Sequence
This appendix describes the most basic initialization sequence for a RapidIO system
that contains two RapidIO IP cores connected through their RapidIO interfaces.
To initialize the system, perform these steps:
1. Read the
Port 0 Error and Status Command and Status
register (CSR) (
0x00158
)
of the first RapidIO II IP core to confirm port initialization.
2. Set the following registers in the first RapidIO II IP core:
a. To set the base ID of the device to
0x01
, set the
Base_deviceID
field (bits 23:16)
or the
Large_base_deviceID
field (bits 15:0) of the
Base Device ID
register
(
0x00060
) to
0x1
.
b. To allow request packets to be issued, write
1
to the
ENA
field (bit 30) of the
Port
General Control CSR
(
0x13C
).
c. To set the destination ID of outgoing maintenance request packets to
0x02
, set
the
DESTINATION_ID
field (bits 23:16) or the combined {
LARGE_DESTINATION_ID
(MSB)
,
DESTINATION_ID
} fields (bits 31:16) of the
Tx Maintenance Window 0
Control
register (
0x1010C
) to
0x02
.
d. To enable an all-encompassing address mapping window for the maintenance
module, write
1’b1
to the
WEN
field (bit 2) of the
Tx Maintenance Window 0
Mask
register (
0x10104
).
3. Set the following registers in the second RapidIO II IP core:
a. To set the base ID of the device to
0x02
, set the
Base_deviceID
field (bits 23:16)
or the
Large_base_deviceID
field (bits 15:0) of the
Base Device ID
register
(
0x00060
) to
0x02
.
b. To allow request packets to be issued, write
1’b1
to the
ENA
field (bit 30) of the
Port General Control CSR
(
0x13C
).
c. To set the destination ID of outgoing maintenance packets to
0x0
, set the
DESTINATION_ID
field (bits 23:16) or the combined {
LARGE_DESTINATION_ID
(MSB)
,
DESTINATION_ID
} fields (bits 31:16) of the
Tx Maintenance Window 0
Control
register (
0x1010C
) to
0x0
.
d. To enable an all-encompassing address mapping window for the maintenance
module, write
1’b1
to the
WEN
field (bit 2) of the
Tx Maintenance Window 0
Mask
register (
0x10104
).
These register settings allow one RapidIO II IP core to remotely access the other
RapidIO II IP core.
To access the registers, the system requires an Avalon-MM master, for example a
Nios II processor. The Avalon-MM master can program these registers.
You can use the Qsys system integration tool, available with the Quartus II software,
to rapidly and easily build and evaluate your RapidIO system.
- 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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