DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver
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13.12 JTAG Interface Timing
Table 13-17. JTAG Interface Timing
(VDD3.3 = 3.3V
±
5%,VDD1.8 = 1.8V
±
5%, T
j
= -40°C to +85°C.) (Note 1,
Figure 13-20
)
PARAMETER SYMBOL
MIN
TYP
MAX
UNITS
JTCLK Clock Period
t1
1000
ns
JTCLK Clock High:Low Time (Note 2)
t2 : t3
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
t8 100
ns
JTRST
Width Low Time
Note 1:
Timing parameters in this table are guaranteed by design (GBD).
Note 2:
Clock can be stopped high or low
Figure 13-20. JTAG Interface Timing Diagram
JTCLK
t1
JTD0
t4
t5
t2
t3
t7
JTDI, JTMS
t6
JTRST
t8