mpc8544e Freescale Semiconductor, Inc, mpc8544e Datasheet - Page 56

• Manufacturer Part Number: mpc8544e
• Description: Mpc8544e Powerquicc Iii Integrated Processor
• Manufacturer: Freescale Semiconductor, Inc

JTAG
12 JTAG
This section describes the AC electrical specifications for the IEEE 1149.1 (JTAG) interface of the
MPC8544E.
12.1
Table 49
12.2
Table 50
56
At recommended operating conditions (see
High-level input voltage
Low-level input voltage
Input current (OV
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
MPC8544E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 4
= 0 V or OV
Table 50. JTAG AC Timing Specifications (Independent of SYSCLK)
Parameter
IN
Parameter
, in this case, represents the OV
DD
DD
IN
= min, I
= min, I
= OV
Table 49. JTAG DC Electrical Characteristics
Table
DD
Preliminary—Subject to Change Without Notice
OL
OH
)
Boundary-scan data
Boundary-scan data
Boundary-scan data
Boundary-scan data
= 2 mA)
= –2 mA)
3).
Freescale Confidential Proprietary
TMS, TDI
TMS, TDI
TDO
TDO
IN
Symbol
.
V
V
V
V
I
IN
OH
OL
t
IH
IL
JTGR
Symbol
t
t
t
t
t
t
t
t
t
JTDVKH
JTDXKH
JTKHKL
JTKLDV
JTKLOV
JTKLDX
JTKLOX
JTIVKH
JTIXKH
t
f
t
TRST
JTG
JTG
& t
JTGF
2
–0.3
Min
2.4
—
—
2
Figure 34
Min
30
15
25
20
25
0
0
4
0
4
4
4
4
OV
through
DD
Max
0.8
0.4
±5
—
Max
33.3
20
25
+ 0.3
—
—
—
—
—
—
—
—
—
2
Freescale Semiconductor
1
Figure
MHz
Unit
Unit
μA
ns
ns
ns
ns
ns
ns
ns
ns
V
V
V
V
37.
Notes
Notes
—
—
—
—
—
—
—
—
1
3
4
4
5
5