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Avalon-ST Bytes to Packets and Packets to
Bytes Converter Cores
19
2014.24.07
UG-01085
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The Avalon
®
Streaming (Avalon-ST) Bytes to Packets and Packets to Bytes Converter cores allow an
arbitrary stream of packets to be carried over a byte interface, by encoding packet-related control signals
such as startofpacket and endofpacket into byte sequences.The Avalon-ST Packets to Bytes Converter
core encodes packet control and payload as a stream of bytes. The Avalon-ST Bytes to Packets Converter
core accepts an encoded stream of bytes, and converts it into a stream of packets.
The SPI Slave to Avalon Master Bridge and JTAG to Avalon Master Bridge are examples of how the cores
are used.
For more information about the bridge, refer to Avalon-ST Bytes to Packets and Packets to Bytes
Converter Cores
Functional Description
The following two figures show block diagrams of the Avalon-ST Bytes to Packets and Packets to Bytes
Converter cores.
Figure 19-1: Avalon-ST Bytes to Packets Converter Core
Avalon-ST
Sink
Avalon-ST
Bytes to Packets
Converter
data_in
(bytes)
T
S
-
n
o
l
a
v
A
e
c
r
u
o
S
data_out
(packet)
Figure 19-2: Avalon-ST Packets to Bytes Converter Core
Avalon-ST
Source
Avalon-ST
Packets to Bytes
Converter
data_in
(packet)
T
S
-
n
o
l
a
v
A
Sink
data_out
(bytes)
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2014 Altera Corporation. All rights reserved. ALTERA, ARRIA, CYCLONE, ENPIRION, MAX, MEGACORE, NIOS, QUARTUS and STRATIX words and logos are
trademarks of Altera Corporation and registered in the U.S. Patent and Trademark Office and in other countries. All other words and logos identified as
trademarks or service marks are the property of their respective holders as described at www.altera.com/common/legal.html. Altera warrants performance
of its semiconductor products to current specifications in accordance with Altera's standard warranty, but reserves the right to make changes to any
products and services at any time without notice. Altera assumes no responsibility or liability arising out of the application or use of any information,
product, or service described herein except as expressly agreed to in writing by Altera. Altera customers are advised to obtain the latest version of device
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ISO
9001:2008
Registered
www.altera.com
101 Innovation Drive, San Jose, CA 95134
- 101 Innovation Drive 1
- San Jose, CA 95134 1
- Contents 2
- Altera Corporation 10
- Introduction 14
- Device Support 15
- December 16
- Initial release. — 16
- SDRAM Controller Core 17
- Avalon-MM Interface 18
- Off-Chip SDRAM Interface 18
- Memory Profile Page 21
- Timing Page 22
- SDRAM Memory Model 23
- Symptoms of an Untuned PLL 26
- Example Calculation 27
- Parameter Symbol 28
- Value (ns) in -7 Speed Grade 28
- Min. Max 28
- Parameter Symbol Value (ns) 28
- Tri-State SDRAM 31
- Configuration Parameter 32
- Interface 33
- Reset and Clock Requirements 38
- Architecture 38
- Block Level Usage Model 39
- Compact Flash Core 41
- Required Connections 42
- (32-bit Word Address) 54
- Register Name R/W 54
- Bit Description 54
- JTAG UART Core 58
- Read and Write FIFOs 59
- JTAG Interface 59
- Host-Target Connection 59
- Simulation Settings 61
- UART Core 70
- RS-232 Interface 71
- Transmitter Logic 71
- Instantiating the Core 72
- Data Bits, Stop Bits, Parity 73
- Synchronizer Stages 74
- Flow Control 74
- Streaming Data (DMA) Control 74
- Request Description 79
- Bit Name Access Description 81
- May 2008 86
- 16550 UART 87
- Unsupported Features 88
- General Architecture 90
- Configuration Parameters 90
- DMA Support 91
- FPGA Resource Usage 91
- Timing and Fmax 92
- Avalon-MM Slave 93
- Overrun/Underrun Conditions 94
- Hardware Auto Flow-Control 95
- 16550 UART API 98
- Private APIs 99
- UART Device Structure 100
- Figure 9-7: 101
- Driver Examples 102
- UG-01085 103
- 2014.24.07 103
- Document Revision History 106
- SPI Core 107
- txdata 108
- Receiver Logic 109
- Master and Slave Modes 109
- Slave Mode Operation 110
- Multi-Slave Environments 110
- Configuration 111
- Data Register Settings 112
- Timing Settings 112
- Software Programming Model 113
- Software Files 114
- Register Map 115
- # Name Description 116
- Date and 118
- Document 118
- Core Overview 119
- Functional Description 119
- Interrupt Behavior 121
- PIO Core 123
- Data Input and Output 124
- Edge Capture 124
- IRQ Generation 124
- Example Configurations 125
- Input Options 126
- Operation 132
- PCI Lite Core 135
- Avalon-MM Ports 137
- Prefetchable Avalon-MM Master 137
- I/O Avalon-MM Master 138
- PCI Bus Access Slave 138
- Master and Target Performance 139
- Space Indicator 141
- (Bits 1:0) 141
- Description 141
- Avalon-to-PCI Write Request 142
- Ordering of Requests 143
- Send Feedback 145
- PCI Timing Constraint Files 146
- Simulation Considerations 147
- Simulation Flow 149
- MDIO Core 151
- MDIO Frame Format (Clause 45) 152
- MDIO Clock Generation 153
- Interfaces 153
- Parameter 154
- Configuration Registers 154
- On-Chip FIFO Memory Core 156
- Offset Bits Field Description 158
- FIFO Settings 161
- Interface Parameters 161
- Software Control 163
- Field Type Description 164
- Bit(s) Name Description 164
- Software Example 166
- On-Chip FIFO Memory API 167
- Multi-Channel Shared FIFO 176
- Parameters 177
- Address Width 178
- Name Access Reset 180
- Bytes Converter Cores 185
- Feature Property 186
- Transaction 190
- DMA Descriptors 197
- Error Conditions 198
- Signal Type Description 199
- Timeouts 206
- Data Structure 207
- SG-DMA API 208
- Name Description 209
- Overview 217
- Feature Description 217
- Component Interface 220
- Descriptor Slave Port 221
- Component GUI 222
- Byte Lanes 223
- Read and Write Address Fields 224
- Length Field 224
- Sequence Number Field 225
- Read and Write Stride Fields 225
- Control Field 225
- Bit Sub-Field Name Definition 226
- Register Map of mSGDMA 228
- Status Register 229
- Control Register 229
- Bit Name Description 230
- Offset Access 3 2 1 0 230
- Unsupported Feature 231
- DMA Controller Core 232
- Setting Up DMA Transactions 233
- Advanced Options 235
- Video Sync Generator 242
- Parameter Name Description 244
- Horizontal sync pulse 245
- Horizontal front porch 245
- Horizontal blank pixels 245
- Pixel Converter 246
- Interval Timer Core 249
- Counter Size 251
- Hardware Options 251
- Bit Name R/W/C Description 255
- Mutex Core 258
- Mutex API 260
- Mailbox Core 264
- Mailbox API 267
- Functional Blocks 273
- Register Maps 275
- Run-time Initialization 285
- Board Support Package 285
- VIC IRQ RRS RIL 291
- November 293
- Altera FPGA 294
- Core Behavior 295
- System ID Core 298
- Performance Counter Core 301
- Global Counter 302
- Using the Performance Counter 304
- Name (1) Meaning 305
- Performance Counter API 306
- PERF_START_MEASURING() 307
- PERF_STOP_MEASURING() 307
- PERF_BEGIN() 307
- PERF_END() 308
- PLL Cores 312
- Registers 313
- PLL Core 313
- ALTPLL Megafunction 313
- Instantiating the PLL Core 314
- Altera MSI to GIC Generator 320
- Interrupt Servicing Process 321
- Registers of Component 322
- Altera SMBus Core Interface 324
- Component Parameterization 326
- Frequency Register 331
- 32-bit Counter 332
- Software Access 334
- Implementation Details 335
- IP Caveats 336
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