Electrical Specifications (Continued)
Table 6-19. JTAG AC Specification (Refer to Figures 6-14 and 6-15)
Symbol
Parameter
Min
Max
Unit
TCK Frequency (MHz)
TCK Period
25
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t1
40
10
10
t2
TCK High Time
t3
TCK Low Time
t4
TCK Rise Time
4
t5
TCK Fall Time
4
t6
TDO Valid Delay
3
3
25
25
30
36
t7
Non-test Outputs Valid Delay
TDO Float Delay
t8
t9
Non-test Outputs Float Delay
TDI, TMS Setup Time
Non-test Inputs Setup Time
TDI, TMS Hold Time
Non-test Inputs Hold Time
t10
t11
t12
t13
8
8
7
7
t1
t2
V
IH(Min)
1.5 V
V
IL(Max)
TCK
t3
t4
t5
Figure 6-14. TCK Timing and Measurement Points
Revision 1.1
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