JTAG
Table 48. JTAG interface DC Electrical Characteristics (continued)
Parameter
Output high voltage
Output low voltage
Output low voltage
Symbol
V
OH
V
OL
V
OL
Condition
I
OH
= –8.0 mA
I
OL
= 8.0 mA
I
OL
= 3.2 mA
Min
2.4
—
—
Max
—
0.5
0.4
Unit
V
V
V
12.2
JTAG AC Timing Specifications
This section describes the AC electrical specifications for the IEEE 1149.1 (JTAG) interface of the device.
provides the JTAG AC timing specifications as defined in
through
Table 49. JTAG AC Timing Specifications (Independent of CLKIN)
1
Parameter
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:
Boundary-scan data
TMS, TDI
Input hold times:
Boundary-scan data
TMS, TDI
Valid times:
Boundary-scan data
TDO
Output hold times:
Boundary-scan data
TDO
t
JTKLDX
t
JTKLOX
2
2
—
—
t
JTKLDV
t
JTKLOV
2
2
11
11
ns
—
t
JTDXKH
t
JTIXKH
10
10
—
—
ns
—
t
JTDVKH
t
JTIVKH
4
4
—
—
ns
Symbol
f
JTG
t
JTG
t
JTKHKL
t
JTGR
& t
JTGF
t
TRST
Min
0
30
15
0
25
Max
33.3
—
—
2
—
Unit
MHz
ns
ns
ns
ns
ns
Notes
—
—
—
—
MPC8378E PowerQUICC
™
II Pro Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
57
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
