mpc8641 Freescale Semiconductor, Inc, mpc8641 Datasheet - Page 54

• Manufacturer Part Number: mpc8641
• Description: Integrated Host Processor Hardware Specifications
• Manufacturer: Freescale Semiconductor, Inc

At recommended operating conditions (see
JTAG
11 JTAG
This section describes the DC and AC electrical specifications for the IEEE 1149.1 (JTAG) interface of
the MPC8641/D.
11.1
Table 43
11.2
Table 44
54
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:
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
IN
provides the DC electrical characteristics for the JTAG interface.
provides the JTAG AC timing specifications as defined in
JTAG DC Electrical Characteristics
DD
DD
JTAG AC Electrical Specifications
1
= 0 V or V
= min, I
= min, I
MPC8641 and MPC8641D Integrated Host Processor Hardware Specifications, Rev. 2
Parameter
OH
OL
Table 44. JTAG AC Timing Specifications (Independent of SYSCLK)
Parameter
IN
= 100 μA)
= –100 μA)
= V
DD)
IN
, in this case, represents the OV
Table 43. JTAG DC Electrical Characteristics
Boundary-scan data
Boundary-scan data
Boundary-scan data
Table
3).
TMS, TDI
TMS, TDI
TDO
Symbol
V
V
V
V
I
IN
OH
OL
IH
IL
t
JTGR
Symbol
t
t
t
t
t
t
t
JTDVKH
JTDXKH
JTKHKL
JTKLDV
JTKLOV
JTIVKH
JTIXKH
t
t
TRST
f
JTG
JTG
& t
IN
symbol referenced in
JTGF
OV
2
– 0.3
DD
Min
—
—
2
– 0.2
Min
Figure 33
30
15
25
20
25
0
0
4
0
4
4
OV
Table 1
DD
Max
0.8
0.2
±5
—
through
+ 0.3
Max
33.3
20
25
—
—
—
—
—
—
—
2
and
Freescale Semiconductor
1
Table
Figure
MHz
Unit
ns
ns
ns
ns
ns
ns
ns
Unit
2.
μA
V
V
V
V
35.
Notes
—
—
—
6
3
4
4
5