XCF16PVO48C XILINX [Xilinx, Inc], XCF16PVO48C Datasheet - Page 6

• Manufacturer Part Number: XCF16PVO48C
• Description: Platform Flash In-System Programmable Configuration PROMs
• Manufacturer: XILINX [Xilinx, Inc]

Design Security
The Xilinx in-system programmable Platform Flash PROM
devices incorporate advanced data security features to fully
protect the FPGA programming data against unauthorized
reading via JTAG. The XCFxxP PROMs can also be
programmed to prevent inadvertent writing via JTAG.
Table 4
the XCFxxS PROM and XCFxxP PROM, respectively.
Read Protection
The read protect security bit can be set by the user to
prevent the internal programming pattern from being read or
copied via JTAG. Read protection does not prevent write
operations. For the XCFxxS PROM, the read protect
security bit is set for the entire device, and resetting the read
protect security bit requires erasing the entire device. For
the XCFxxP PROM the read protect security bit can be set
for individual design revisions, and resetting the read
protect bit requires erasing the particular design revision.
Table 5: XCFxxP Design Revision Data Security Options
DS123 (v2.11.1) March 30, 2007
Product Specification
Reset (default)
Reset (default)
Set
Set
and
Read Protect
R
Table 5
show the security settings available for
Reset (default)
Reset (default)
Write Protect
Set
Set
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Platform Flash In-System Programmable Configuration PROMs
Write Protection
The XCFxxP PROM device also allows the user to write
protect (or lock) a particular design revision to prevent
inadvertent erase or program operations. Once set, the
write protect security bit for an individual design revision
must be reset (using the UNLOCK command followed by
ISC_ERASE command) before an erase or program
operation can be performed.
Table 4: XCFxxS Device Data Security Options
Reset (default)
Set
Read Protect
Read/Verify
Inhibited
✓
✓
Read/Verify
Program Inhibited
Inhibited
✓
✓
✓
Program
Inhibited
Erase Inhibited
Inhibited
✓
✓
Erase
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