Data Sheet

Ethernet Controller I210 —Electrical/Mechanical Specification
796
11.6.2.6 JTAG AC Specification
The I210 is designed to support the IEEE 1149.1 standard. Following timing specifications are
applicable over recommended operating range from Ta = 0
o
C to +70
o
C, VCC3P3 = 3.3V, Cload =
16 pF (unless otherwise noted). For JTAG I/F timing specification see Table 11-13 and Figure 11-6.
Figure 11-5. NC-SI Timing Diagram
Table 11-13. JTAG I/F Timing Parameters
Symbol Parameter Min Typ Max Units Note
t
JCLK
JTCK clock frequency 10 MHz
t
JH
JTMS and JTDI hold time 10 nS
t
JSU
JTMS and JTDI setup time 10 nS
t
JPR
JTDO propagation Delay 15 nS
Notes:
1. Table 11-13 applies to JTCK, JTMS, JTDI and JTDO.
2. Timing measured relative to JTCK reference voltage of VCC3P3/2.
Tsu
90%
10%
90%
10%
Vckm
Thd
SIGNALS
NC_SI_CLK_IN
gray = signals changing
GND
GND
Tco
Tck
Vm