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XC858CA
Electrical Parameters
Table 46 JTAG Timing (Operating Conditions apply; CL = 50 pF) (cont’d)
Parameter
Symbol
Limits
Unit Test Conditions
min max
TDO high impedance to valid t4 CC -
output from TCK
18
ns
1)
TDO valid output to high
impedance from TCK
t5 CC -
21
ns
1)
1) Not all parameters are 100% tested, but are verified by design/characterization and test correlation.
TCK
TMS
TDI
TDO
t1
t2
t1
t2
t4
t3
t5
Figure 43 JTAG Timing
Data Sheet
112
V1.0, 2010-03