R
Spartan and Spartan-XL FPGA Families Data Sheet
DATA IN
IOB.T
0
1
1
0
sd
D
Q
D
Q
LE
IOB
IOB
IOB
IOB
IOB
IOB
IOB
IOB
IOB
IOB
IOB
IOB
IOB
IOB
IOB
IOB
IOB
IOB
IOB
sd
1
0
D
Q
D
Q
LE
1
0
IOB.I
1
sd
D
Q
D
Q
0
LE
1
0
IOB.Q
IOB.T
BYPASS
REGISTER
0
1
M
U
X
TDO
1
sd
INSTRUCTION REGISTER
TDI
D
Q
D
Q
0
LE
1
sd
D
Q
D
Q
0
LE
1
0
IOB.I
DATAOUT
UPDATE
EXTEST
SHIFT/
CAPTURE
CLOCK DATA
REGISTER
DS060_20_080400
Figure 20: Spartan/XL Boundary Scan Logic
22
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DS060 (v1.8) June 26, 2008
Product Specification