R
Spartan and Spartan-XL Families Field Programmable Gate Arrays
DATA IN
IOB.T
0
1
1
sd
D
Q
D
Q
0
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
SHIFT/
CAPTURE
UPDATE
EXTEST
CLOCK DATA
REGISTER
DS060_20_080400
Figure 20: Spartan/XL Boundary Scan Logic
22
www.xilinx.com
DS060 (v1.6) September 19, 2001
1-800-255-7778
Product Specification