General Description:
What are the checksums in a JEDEC file, and how do I read it?
^BQF186624* <-- Number of Fuses in Device
QP352* <-- Number of Package Pins
QV0* <-- Number of Test Vectors
F0* <-- Default Fuse State
X0* <-- Default Test Condition
J0 0* <-- Device ID
N DEVICE XC95216-15-BG352 * <-- Comment Field
N PPMAP 232 A1 * <-- Comment Field
N PPMAP 209 A10 * <-- Comment Field
L0000000 00000011 00000011 00000011 00000011 00000011*^M <-- Fuse List (Data)
L0000040 00000011 00000011 00000011 00000011 000000*^M <-- Fuse List (Data)
L0000078 000000 000000 000000 000000 000000*^M <-- Fuse List (Data)
L0186588 01111111 0111111 0111111 1111111 1111111*^M <-- Fuse List (Data)
C3012*^M <-- Fuse Checksum (3012)
UH0000C95A <-- This line is present if 'Auto Checksum Insertion' is enabled
^CF28D^M <-- '^C' ETX (ASCII 03) End Transmission, 'F28D' File Checksum
NOTE: For the 9500* families, the Usercode is spread across several places in the JEDEC file and is not visible in the file. For CoolRunner families, the Usercode is programmed through the programming tool, and it is not embedded in the Jedec file.
AR# 3579 | |
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日期 | 12/15/2012 |
状态 | Active |
Type | 综合文章 |