MPC8548E Freescale, MPC8548E Datasheet - Page 52

• Manufacturer Part Number: MPC8548E
• Description: Integrated Processor
• Manufacturer: Freescale

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JTAG
12.1
Table 42
12.2
Table 43
52
High-level input voltage
Low-level input voltage
Input current (V
High-level output voltage (OV
Low-level output voltage (OV
Note:
1. Note that the symbol V
JTAG external clock frequency of operation
JTAG external clock cycle time
JTAG external clock pulse width measured at 1.4 V
JTAG external clock rise and fall times
TRST assert time
Input setup times:
Input hold times:
Valid times:
Output hold times:
provides the DC electrical characteristics for the JTAG interface.
provides the JTAG AC timing specifications as defined in
JTAG DC Electrical Characteristics
JTAG AC Electrical Specifications
IN
1
MPC8548E PowerQUICC™ III Integrated Processor Hardware Specifications, Rev. 4
= 0 V or V
Table 43. JTAG AC Timing Specifications (Independent of SYSCLK)
Parameter
Parameter
IN
, in this case, represents the OV
DD
IN
DD
= V
= min, I
= min, I
DD
Table 42. JTAG DC Electrical Characteristics
)
Boundary-scan data
Boundary-scan data
Boundary-scan data
Boundary-scan data
OL
OH
= 2 mA)
= –2 mA)
TMS, TDI
TMS, TDI
TDO
TDO
IN
t
.
JTGR
Symbol
t
t
t
t
t
t
t
t
t
JTDVKH
JTDXKH
JTKHKL
JTKLDV
JTKLOV
JTKLDX
JTKLOX
t
JTIVKH
JTIXKH
t
TRST
f
JTG
JTG
Symbol
& t
V
V
V
V
JTGF
I
IN
OH
OL
IH
IL
2
1
Min
Figure 30
30
15
25
20
25
30
30
0
0
4
0
4
4
–0.3
Min
2.4
—
—
2
through
Max
33.3
20
25
—
—
—
—
—
—
—
—
—
2
OV
Freescale Semiconductor
1
DD
Figure
Max
0.8
0.4
±5
—
+ 0.3
MHz
Unit
ns
ns
ns
ns
ns
ns
ns
ns
32.
Notes
Unit
μA
—
—
—
V
V
V
V
4
4
5
5
6
3