ASMI Parallel Intel® FPGA IP Core User Guide

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ID 683205
Date 7/02/2019
Public
Document Table of Contents
Document Table of Contents x
1. ASMI Parallel Intel® FPGA IP Core User Guide
1. ASMI Parallel Intel® FPGA IP Core User Guide x
1.1. Device Family Support 1.2. Ports and Parameters 1.3. Installing and Licensing Intel® FPGA IP Cores 1.4. ASMI Parallel Intel® FPGA IP Core Operations and Timing Requirements 1.5. ASMI Parallel Intel® FPGA IP Core User Guide Archives 1.6. Document Revision History for ASMI Parallel Intel® FPGA IP Core User Guide
1.2. Ports and Parameters x
1.2.1. Parameters 1.2.2. Input Ports 1.2.3. Output Ports
1.4. ASMI Parallel Intel® FPGA IP Core Operations and Timing Requirements x
1.4.1. Read Memory Capacity ID from the EPCS/EPCQ/EPCQ-L/EPCQ-A Device 1.4.2. Read Silicon ID from the EPCS Device 1.4.3. Protect a Sector on the EPCS/EPCQ/EPCQ-L/EPCQ-A Device 1.4.4. Read Data from the EPCS/EPCQ/EPCQ-L/EPCQ-A Device 1.4.5. Fast Read Data from the EPCS/EPCQ/EPCQ-L/EPCQ-A Device 1.4.6. Write Data to the EPCS/EPCQ/EPCQ-L/EPCQ-A Device 1.4.7. Read Status Register of the EPCS/EPCQ/EPCQ-L/EPCQ-A Device 1.4.8. Erase Memory in a Specified Sector on the EPCS/EPCQ/EPCQ-L/EPCQ-A Device 1.4.9. Erase Memory in Bulk on the EPCS/EPCQ/EPCQ-L256/EPCQ-A Device 1.4.10. Erase Memory in a Specified Die on the EPCQ-L512 and EPCQ-L1024 Device 1.4.11. Enable 4-byte Addressing Operation for an EPCQ256/EPCQ-L256 or Larger Devices 1.4.12. 4-byte Addressing Exit Operation for an EPCQ256/EPCQ-L256 or Larger Devices
1.4.5. Fast Read Data from the EPCS/EPCQ/EPCQ-L/EPCQ-A Device x
1.4.5.1. EPCQ/EPCQ-L/EPCQ-A Devices Extended SPI Dual and Quad I/O Instruction 1.4.5.2. EPCQ/EPCQ-L/EPCQ-A Devices Read Dummy Clock Instruction
1.4.6. Write Data to the EPCS/EPCQ/EPCQ-L/EPCQ-A Device x
1.4.6.1. Single-Byte Write Operation 1.4.6.2. Page-Write Operation
1. ASMI Parallel Intel® FPGA IP Core User Guide

1.4.1. Read Memory Capacity ID from the EPCS/EPCQ/EPCQ-L/EPCQ-A Device

Use the read_rdid signal to instruct the IP core to read the memory capacity ID from the EPCS/EPCQ/EPCQ-L/EPCQ-A device.
Figure 4. Reading Memory Capacity IDThis figure shows an example of the latency when the ASMI Parallel Intel® FPGA IP core is executing the read command. The latency shown does not correctly indicate the true processing time. The latency only shows the command.
Note: When the busy signal is deasserted, allow two clock cycles before sending a new signal. This delay allows the circuit to reset itself before executing the next command.


The IP core registers the read_rdid signal on the rising edge of the clkin signal. After the IP core registers the read_rdid signal, the IP core asserts the busy signal to indicate that the read command is in progress.

Ensure that the memory capacity ID appears on the rdid_out[7..0] signal before the busy signal is deasserted. This allows you to sample the rdid_out[7..0] signal as soon as the busy signal is deasserted.

The rdid_out[7..0] signal holds the value of the memory capacity ID until the device resets. Therefore, you must execute this read command only once.

Note: To meet setup and hold time requirements, assert the read_rdid signal any time between the rising edges of the clkin signal, and keep the read_rdid signal asserted for at least one full clock cycle. Ensure that the read_rdid signal assertion does not coincide with the rising edges of the clkin signal.

If you keep the read_rdid signal asserted while the busy signal is deasserted after the IP core has finished processing the read command, the IP core re-registers the read_rdid signal as a value of one and carries out the command again. Therefore, you must deassert the read_rdid signal before the busy signal is deasserted.

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