XC3S100E_06 Datasheet, PDF (212/231 Pages) Xilinx, Inc – Configurable Logic Block (CLB)

Pinout Descriptions
R
Footprint Migration Differences
Table 150 summarizes any footprint and functionality differ-
ences between the XC3S500E, the XC3S1200E, and the
XC3S1600E FPGAs that may affect easy migration
between devices available in the FG320 package. There are
26 such balls. All other pins not listed in Table 150 uncondi-
tionally migrate between Spartan-3E devices available in
the FG320 package.
The XC3S500E is duplicated on both the left and right sides
of the table to show migrations to and from the XC3S1200E
and the XC3S1600E. The arrows indicate the direction for
easy migration. A double-ended arrow (ÅÆ) indicates that
the two pins have identical functionality. A left-facing arrow
(Å) indicates that the pin on the device on the right uncon-
ditionally migrates to the pin on the device on the left. It may
be possible to migrate the opposite direction depending on
the I/O configuration. For example, an I/O pin (Type = I/O)
can migrate to an input-only pin (Type = INPUT) if the I/O
pin is configured as an input.
Table 150: FG320 Footprint Migration Differences
Pin Bank XC3S500E Migration XC3S1200E
A7
0 INPUT
Æ
I/O
A12
0 N.C.
Æ
I/O
D4
3 N.C.
Æ
I/O
D6
0 N.C.
Æ
I/O
D13
0 INPUT
Æ
I/O
E3
3 N.C.
Æ
I/O
E4
3 N.C.
Æ
I/O
E6
0 N.C.
Æ
I/O
E15
1 N.C.
Æ
I/O
E16
1 N.C.
Æ
I/O
E17
1 I/O
Å
INPUT
F4
3 I/O
Å
INPUT
N12
2 N.C.
Æ
I/O
N14
1 N.C.
Æ
I/O
N15
1 N.C.
Æ
I/O
P3
3 N.C.
Æ
I/O
P4
3 N.C.
Æ
I/O
P12
2 N.C.
Æ
I/O
P15
1 I/O
Å
INPUT
P16
1 N.C.
Æ
I/O
R4
3 VREF(I/O)
Å
VREF(INPUT)
U6
2 INPUT
Æ
I/O
U13
2 INPUT
Æ
I/O
V5
2 N.C.
Æ
I/O
V6
2 N.C.
Æ
VREF
V7
2 N.C.
Æ
I/O
Migration
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
ÅÆ
XC3S1600E
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
INPUT
INPUT
I/O
I/O
I/O
I/O
I/O
I/O
INPUT
I/O
VREF(INPUT)
I/O
I/O
I/O
VREF
I/O
Migration
Å
Å
Å
Å
Å
Å
Å
Å
Å
Å
Æ
Æ
Å
Å
Å
Å
Å
Å
Æ
Å
Æ
Å
Å
Å
Å
Å
XC3S500E
INPUT
N.C.
N.C.
N.C.
INPUT
N.C.
N.C.
N.C.
N.C.
N.C.
I/O
I/O
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
I/O
N.C.
VREF(I/O)
INPUT
INPUT
N.C.
N.C.
N.C.
DIFFERENCES
26
0
26
Legend:
ÅÆ ^{This pin is identical on the device on the left and the right.}
Æ ^{This pin can unconditionally migrate from the device on the left to the device on the right. Migration in the other direction may be possible}
depending on how the pin is configured for the device on the right.
Å ^{This pin can unconditionally migrate from the device on the right to the device on the left. Migration in the other direction may be possible}
depending on how the pin is configured for the device on the left.
212
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DS312-4 (v3.4) November 9, 2006
Product Specification