Contents
Conclusion .......................................................................................................................................... 10–36
References ........................................................................................................................................... 10–37
Referenced Documents ..................................................................................................................... 10–38
Document Revision History ............................................................................................................. 10–38
Chapter 11. High-Speed Differential Interfaces in Cyclone II Devices
Introduction .......................................................................................................................................... 11–1
Cyclone II High-Speed I/O Banks .................................................................................................... 11–1
Cyclone II High-Speed I/O Interface ............................................................................................... 11–3
I/O Standards Support ....................................................................................................................... 11–4
LVDS Standard Support in Cyclone II Devices ......................................................................... 11–4
RSDS I/O Standard Support in Cyclone II Devices .................................................................. 11–7
mini-LVDS Standard Support in Cyclone II Devices ................................................................ 11–9
LVPECL Support in Cyclone II .................................................................................................. 11–11
Differential SSTL Support in Cyclone II Devices ..................................................................... 11–12
Differential HSTL Support in Cyclone II Devices ................................................................... 11–13
High-Speed I/O Timing in Cyclone II Devices ............................................................................. 11–14
Design Guidelines ............................................................................................................................. 11–16
Differential Pad Placement Guidelines ..................................................................................... 11–16
Board Design Considerations ..................................................................................................... 11–16
Conclusion .......................................................................................................................................... 11–17
Section V. DSP
Revision History .................................................................................................................................. 11–1
Chapter 12. Embedded Multipliers in Cyclone II Devices
Introduction .......................................................................................................................................... 12–1
Embedded Multiplier Block Overview ............................................................................................ 12–2
Architecture .......................................................................................................................................... 12–4
Input Registers ................................................................................................................................ 12–4
Multiplier Stage .............................................................................................................................. 12–5
Output Registers ............................................................................................................................. 12–6
Operational Modes .............................................................................................................................. 12–6
18-Bit Multipliers ............................................................................................................................ 12–7
9-Bit Multipliers .............................................................................................................................. 12–7
Software Support ................................................................................................................................. 12–9
Conclusion ............................................................................................................................................ 12–9
Section VI. Configuration & Test
Revision History .................................................................................................................................. 12–1
Chapter 13. Configuring Cyclone II Devices
Introduction .......................................................................................................................................... 13–1
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Altera Corporation
Cyclone II Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
