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DS33Z41 Quad IMUX Ethernet Mapper
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11.9 JTAG Interface Timing
Table 11-14. JTAG Interface Timing
(VDD3.3 = 3.3V
±
5%, VDD1.8 = 1.8V
±
5%, Tj = -40
°
C to +85
°
C.)
PARAMETER SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
JTCLK Clock Period
t1
1000
ns
JTCLK Clock High:Low Time
t2:t3
(Note 1)
50
500
ns
JTCLK to JTDI, JTMS Setup Time
t4
2
ns
JTCLK to JTDI, JTMS Hold Time
t5
2
ns
JTCLK to JTDO Delay
t6
2
50
ns
JTCLK to JTDO HIZ Delay
t7
2
50
ns
JTRST
Width Low Time
t8
100 ns
Note 1:
Clock can be stopped high or low.
Figure 11-15. JTAG Interface Timing Diagram
JTCLK
t1
JTD0
t4
t5
t2
t3
t7
JTDI, JTMS,
JTRST
t6
JTRST
t8