Mitel DISTRIBUTED HYPERCHANNEL MT90840 - Manual (Page 48)

MT90840
Preliminary Information
2-278
Figure 34 - Boundary Scan Test Port Timing
Figure 35 - RESET Timing
AC Electrical Characteristics - Boundary-Scan Test Port and RESET Pin
Parameter Symbol Min Max Units Test Conditions
1 TCK period width t
tclk
100 ns
2 TCK period width LOW t
tclkl
40 ns
3 TCK period width HIGH t
tclkh
40 ns
4 TDI setup time to TCK rising t
disu
2 ns
5 TDI hold time after TCK rising t
dih
33 ns
6 TMS setup time to TCK rising t
mssu
2 ns
7 TMS hold time after TCK rising t
msh
5 ns
8 TDO delay from TCK falling t
dod
20 ns C
L
= 30 pF
9 TRST pulse width t
trst
15 ns
10 RESET pulse width t
rst
15 ns
t
mssu
TDI
TDO
TMS
TCK
t
disu
t
msh
t
dih
t
dod
t
tclkh
t
tclkl
t
tclk
TRST
t
trst
RES
t
rst