Embedded Peripherals IP User Guide

ID 683130
Date 10/18/2023
Public

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Document Table of Contents
1. Introduction 2. Avalon® -ST Multi-Channel Shared Memory FIFO Core 3. Avalon® -ST Single-Clock and Dual-Clock FIFO Cores 4. Avalon® -ST Serial Peripheral Interface Core 5. SPI Core 6. SPI Agent/JTAG to Avalon® Host Bridge Cores 7. Intel eSPI Agent Core 8. eSPI to LPC Bridge Core 9. Ethernet MDIO Core 10. Intel FPGA 16550 Compatible UART Core 11. UART Core 12. JTAG UART Core 13. Intel FPGA Avalon® Mailbox Core 14. Intel FPGA Avalon® Mutex Core 15. Intel FPGA Avalon® I2C (Host) Core 16. Intel FPGA I2C Agent to Avalon® -MM Host Bridge Core 17. Intel FPGA Avalon® Compact Flash Core 18. EPCS/EPCQA Serial Flash Controller Core 19. Intel FPGA Serial Flash Controller Core 20. Intel FPGA Serial Flash Controller II Core 21. Intel FPGA Generic QUAD SPI Controller Core 22. Intel FPGA Generic QUAD SPI Controller II Core 23. Interval Timer Core 24. Intel FPGA Avalon FIFO Memory Core 25. On-Chip Memory (RAM and ROM) Intel FPGA IP 26. On-Chip Memory II (RAM or ROM) Intel FPGA IP 27. Optrex 16207 LCD Controller Core 28. PIO Core 29. PLL Cores 30. DMA Controller Core 31. Modular Scatter-Gather DMA Core 32. Scatter-Gather DMA Controller Core 33. SDRAM Controller Core 34. Tri-State SDRAM Core 35. Video Sync Generator and Pixel Converter Cores 36. Intel FPGA Interrupt Latency Counter Core 37. Performance Counter Unit Core 38. Vectored Interrupt Controller Core 39. Avalon® -ST Data Pattern Generator and Checker Cores 40. Avalon® -ST Test Pattern Generator and Checker Cores 41. System ID Peripheral Core 42. Avalon® Packets to Transactions Converter Core 43. Avalon® -ST Multiplexer and Demultiplexer Cores 44. Avalon® -ST Bytes to Packets and Packets to Bytes Converter Cores 45. Avalon® -ST Delay Core 46. Avalon® -ST Round Robin Scheduler Core 47. Avalon® -ST Splitter Core 48. Avalon® -MM DDR Memory Half Rate Bridge Core 49. Intel FPGA GMII to RGMII Converter Core 50. Intel FPGA MII to RMII Converter Core 51. HPS GMII to TSE 1000BASE-X/SGMII PCS Bridge Core Intel® FPGA IP 52. Intel FPGA HPS EMAC to Multi-rate PHY GMII Adapter Core 53. Intel FPGA MSI to GIC Generator Core 54. Cache Coherency Translator Intel® FPGA IP 55. Lightweight UART Core

26.3.1.5. Read During Write Mode

This option defines the settings for the Mixed-Port Read During Write Mode setting

The DONT_CARE, OLD_DATA, and NEW_DATA settings determine what the output data of the memory should be when a simultaneous read and write to the same memory location occurs.

The following shows the different Mixed-Port Read During Write mode setting available with Avalon® memory-mapped interface On-Chip Memory II IP.
Table 274.   Intel® Stratix® 10/ Intel Agilex® 7 Mixed-Port Read During Write Mode Settings
Dual-port access Block Type RAM ROM
L1 Output Register for Port L1 Output Register for Port
Disable Enable Disable Enable
SinglePort

AUTO

M20K

- - - -
MLAB - - - -
SimpleDualPort*

AUTO

M20K

DONT_CARE

OLD_DATA

DONT_CARE

OLD_DATA

- -
MLAB

DONT_CARE

DONT_CARE

OLD_DATA

NEW_DATA

- -
DualPort

AUTO

M20K

DONT_CARE

DONT_CARE

- -
MLAB - - - -
*Single clock operation is enabled
Table 275.   Intel® Arria® 10 Mixed-Port Read During Write Mode Settings
Dual-port access Block Type RAM ROM
L1 Output Register for Port L1 Output Register for Port
Disable Enable Disable Enable
SinglePort

AUTO

M20K

- - - -
MLAB - - - -
SimpleDualPort*

AUTO

M20K

DONT_CARE

OLD_DATA

DONT_CARE

OLD_DATA

- -
MLAB

DONT_CARE

DONT_CARE

OLD_DATA

NEW_DATA

- -
DualPort*

AUTO

M20K

DONT_CARE

OLD_DATA

DONT_CARE

OLD_DATA

- -
MLAB - - - -
*Single clock operation is enabled