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Product Discontinuance Notification
1. About the RapidIO II Intel® FPGA IP
2. Getting Started
3. Parameter Settings
4. Functional Description
5. Signals
6. Software Interface
7. Testbench
8. RapidIO II IP Core User Guide Archives
9. Document Revision History for the RapidIO II Intel® FPGA IP User Guide
A. Initialization Sequence
B. Differences Between RapidIO II IP Core and RapidIO IP Core
2.1. Installing and Licensing Intel® FPGA IP Cores
2.2. Intel® FPGA IP Evaluation Mode
2.32.4. Generating IP Cores2.32.4. Generating IP Cores
2.32.4. Generating IP Cores2.32.4. Generating IP Cores
2.5. RapidIO II IP Core Testbench Files
2.6. Simulating IP Cores
2.7. Integrating Your IP Core in Your Design
2.8. Compiling the Full Design and Programming the FPGA
2.9. Instantiating Multiple RapidIO II IP Cores in V-series FPGA devices
3.4.1. Device Identity CAR
3.4.2. Device Information CAR
3.4.3. Assembly Identity CAR
3.4.4. Assembly Information CAR
3.4.5. Processing Element Features CAR
3.4.6. Switch Port Information CAR
3.4.7. Switch Route Table Destination ID Limit CAR
3.4.8. Data Streaming Information CAR
3.4.9. Source Operations CAR
3.4.10. Destination Operations CAR
4.3.3.1. Maintenance Interface Transactions
4.3.3.2. Maintenance Interface Signals
4.3.3.3. Initiating MAINTENANCE Read and Write Transactions
4.3.3.4. Defining the Maintenance Address Translation Windows
4.3.3.5. Responding to MAINTENANCE Read and Write Requests
4.3.3.6. Handling Port-Write Transactions
4.3.3.7. Maintenance Interface Transaction Examples
4.3.3.8. Maintenance Packet Error Handling
4.3.5.3.1. User Sending Write Request
4.3.5.3.2. User Receiving Write Request
4.3.5.3.3. User Sending Read Request and Receiving Read Response
4.3.5.3.4. User Receiving Read Request and Sending Read Response
4.3.5.3.5. User Sending Streaming Write Request
4.3.5.3.6. User Receiving Streaming Write Request
6.1.1. CAR Memory Map
6.1.2. CSR Memory Map
6.1.3. LP-Serial Extended Features Block Memory Map
6.1.4. LP-Serial Lane Extended Features Block Memory Map
6.1.5. Error Management Extensions Extended Features Block Memory Map
6.1.6. Maintenance Module Registers Memory Map
6.1.7. I/O Logical Layer Master Module Registers Memory Map
6.1.8. I/O Logical Layer Slave Module Registers Memory Map
6.1.9. Doorbell Module Registers Memory Map
6.2.1.1. LP-Serial Register Block Header
6.2.1.2. Port Link Time-out Control CSR
6.2.1.3. Port Response Time-out Control CSR
6.2.1.4. Port General Control CSR
6.2.1.5. Port 0 Link Maintenance Request CSR
6.2.1.6. Port 0 Link Maintenance Response CSR
6.2.1.7. Port 0 Local AckID CSR
6.2.1.8. Port 0 Control 2 CSR
6.2.1.9. Port 0 Error and Status CSR
6.2.1.10. Port 0 Control CSR
6.3.1.1. CAR Memory Map
6.3.1.2. Device Identity CAR
6.3.1.3. Device Information CAR
6.3.1.4. Assembly Identity CAR
6.3.1.5. Assembly Information CAR
6.3.1.6. Processing Element Features CAR
6.3.1.7. Switch Port Information CAR
6.3.1.8. Source Operations CAR
6.3.1.9. Destination Operations CAR
6.3.1.10. Switch Route Table Destination ID Limit CAR
6.3.1.11. Data Streaming Information CAR
6.3.2.1. CSR Memory Map
6.3.2.2. Data Streaming Logical Layer Control CSR
6.3.2.3. Processing Element Logical Layer Control CSR
6.3.2.4. Local Configuration Space Base Address 0 CSR
6.3.2.5. Local Configuration Space Base Address 1 CSR
6.3.2.6. Base Device ID CSR
6.3.2.7. Host Base Device ID Lock CSR
6.3.2.8. Component Tag CSR
6.3.6.1. Error Management Extensions Extended Features Block Memory Map
6.3.6.2. Error Management Extensions Block Header
6.3.6.3. Logical/Transport Layer Error Detect
6.3.6.4. Logical/Transport Layer Error Enable
6.3.6.5. Logical/Transport Layer Address Capture
6.3.6.6. Logical/Transport Layer Device ID Capture
6.3.6.7. Logical/Transport Layer Control Capture
6.3.6.8. Port-Write Target Device ID
6.3.6.9. Packet Time-to-Live
6.3.6.10. Port 0 Error Detect
6.3.6.11. Port 0 Error Rate Enable
6.3.6.12. Port 0 Attributes Capture
6.3.6.13. Port 0 Packet/Control Symbol Capture 0
6.3.6.14. Port 0 Packet Capture 1
6.3.6.15. Port 0 Packet Capture 2
6.3.6.16. Port 0 Packet Capture 3
6.3.6.17. Port 0 Error Rate
6.3.6.18. Port 0 Error Rate Threshold
7.2.1. Reset, Initialization, and Configuration
7.2.2. Maintenance Write and Read Transactions
7.2.3. SWRITE Transactions
7.2.4. NREAD Transactions
7.2.5. NWRITE_R Transactions
7.2.6. NWRITE Transactions
7.2.7. Doorbell Transactions
7.2.8. Port-Write Transactions
7.2.9. Transactions Across the AVST Pass-Through Interface
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4.3.3.7.2. User Receiving MAINTENANCE Write Requests
User Operation | Device ID Width | Payload Size |
---|---|---|
Receive MAINTENANCE write request | 8-bit | 32-bit |
The RapidIO II IP core generates write transfers on the Maintenance Avalon-MM master interface in response to Type 8 MAINTENANCE Write request packets on the RapidIO link with the following properties:
- ttype has the value of 4'b0001, indicating a MAINTENANCE Write request
- config_offset has a value that indicates an address outside the range of the RapidIO II IP core internal register set
Figure 25. Write Transfers on the Maintenance Avalon-MM Master InterfaceIt shows the signal relationships when the RapidIO II IP core presents a sequence of four write transfers on the Maintenance Avalon-MM master interface.
In the first active clock cycle, the RapidIO II IP core indicates the start of a write transfer by asserting the usr_mnt_write signal. Simultaneously, the IP core presents the target address on the usr_mnt_address bus and the data on the usr_mnt_writedata bus.
In this example, user logic does not assert the usr_mnt_waitrequest signal. However, when user logic asserts the usr_mnt_waitrequest signal during a write transfer, the IP core maintains the address and data values on the buses until at least one clock cycle after user logic deasserts the usr_mnt_waitrequest signal. User logic can use the usr_mnt_waitrequest signal to throttle requests on this interface until it is ready to process them.