
Options
Value
Description
Time period before the
watchdog timer times
out
—
Specifies the time out period for the watchdog timer. The default time out period is 100
ms.
Use advance read
mode?
• Normal mode
• Intel Burst mode
• 16 byte page mode (GL only)
• 32 byte page mode (MT23EW)
• Micron Burst Mode (M58BW)
This option improves the overall flash access time for the read process during the FPGA
configuration.
• Normal mode—applicable for all flash memory
• Intel Burst mode—Applicable for devices that support bursting. Reduces sequential
read access time
• 16 byte page mode (GL only)—applicable for Cypress GL flash memory only
• 32 byte page mode (MT23EW)—applicable tor MT23EW only
• Micron Burst Mode (M58BW)—applicable for Micron M58BW flash memory only
For more information about the read-access modes of the flash memory device, refer to
the respective flash memory data sheet.
Latency count
• 3
• 4
• 5
Specifies the latency count for Intel Burst mode.
3.1.10.4. PFL II Signals
Table 22.
PFL II Signals
Pin
Type
Weak Pull-Up
Function
pfl_nreset
Input
—
Asynchronous reset for the PFL II IP core. Pull high to enable FPGA
configuration. To prevent FPGA configuration, pull low when you do not
use the PFL II IP core. This pin does not affect the PFL II IP flash
programming functionality.
pfl_flash_access_granted
Input
—
For system-level synchronization. A processor or any arbiter that controls
access to the flash drives this input pin. To use the PFL II IP core function
as the flash master pull this pin high. Driving the
pfl_flash_access_granted
pin low prevents the JTAG interface from
accessing the flash and FPGA configuration.
pfl_clk
Input
—
User input clock for the device. This is the frequency you specify for the
What is the external clock frequency? parameter on the Configuration
tab of the PFL II IP. This frequency must not be higher than the maximum
DCLK
frequency you specify for FPGA during configuration. This pin is not
available if you are only using the PFL II IP for flash programming.
continued...
3. Intel Agilex Configuration Schemes
UG-20205 | 2019.10.09
Intel
®
Agilex
™
Configuration User Guide
84
Содержание Agilex
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