R
XC5200 Series Field Programmable Gate Arrays
senting the decoding of the corresponding state of the
boundary-scan internal state machine.
DATA IN
1
0
sd
D
Q
D
Q
LE
1
0
IOB.O
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.O
IOB.T
BYPASS
REGISTER
0
1
7
M
U
X
TDO
TDI
1
sd
INSTRUCTION REGISTER
TDI
D
Q
D
Q
0
LE
M
U
X
INSTRUCTION REGISTER
TDO
1
sd
BYPASS
REGISTER
D
Q
D
Q
IOB
IOB
IOB
IOB
IOB
IOB
IOB
IOB
IOB
IOB
IOB
IOB
IOB
IOB
0
LE
1
0
IOB.I
1
sd
D
Q
D
Q
0
LE
0
1
IOB.O
DATAOUT
SHIFT/
UPDATE
EXTEST
IOB
IOB
IOB
IOB
IOB
CLOCK DATA
REGISTER
CAPTURE
X1523_01
Figure 19: XC5200-Series Boundary Scan Logic
November 5, 1998 (Version 5.2)
7-99
XILINX [ XILINX, INC ]
