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P.N:MPC8349CZUAGDB Desc:IC MPU POWERQUICC II PRO 672TBGA
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MPC8349EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 13
42
Freescale Semiconductor
JTAG
11.2
JTAG AC Timing Specifications
This section describes the AC electrical specifications for the IEEE Std. 1149.1 (JTAG) interface of the
MPC8349EA.
Table 41
provides the JTAG AC timing specifications as defined in
Figure 28
through
Figure 31
.
Output low voltage
V
OL
I
OL
= 8.0 mA
—
0.5
V
Output low voltage
V
OL
I
OL
= 3.2 mA
—
0.4
V
Table 41. JTAG AC Timing Specifications (Independent of CLKIN)
1
At recommended operating conditions (see
Table 2
).
Parameter
Symbol
2
Min
Max
Unit
Notes
JTAG external clock frequency of operation
f
JTG
0
33.3
MHz
—
JTAG external clock cycle time
t
JTG
30
—
ns
—
JTAG external clock pulse width measured at 1.4 V
t
JTKHKL
15
—
ns
—
JTAG external clock rise and fall times
t
JTGR
, t
JTGF
0
2
ns
—
TRST assert time
t
TRST
25
—
ns
3
Input setup times:
Boundary-scan data
TMS, TDI
t
JTDVKH
t
JTIVKH
4
4
—
—
ns
4
Input hold times:
Boundary-scan data
TMS, TDI
t
JTDXKH
t
JTIXKH
10
10
—
—
ns
4
Valid times:
Boundary-scan data
TDO
t
JTKLDV
t
JTKLOV
2
2
11
11
ns
5
Output hold times:
Boundary-scan data
TDO
t
JTKLDX
t
JTKLOX
2
2
—
—
ns
5
Table 40. JTAG Interface DC Electrical Characteristics (continued)
Parameter
Symbol
Condition
Min
Max
Unit
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