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
