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