JTAG
Table 40. JTAG Interface DC Electrical Characteristics (continued)
Parameter
Symbol
Condition
Min
Max
Unit
Output low voltage
Output low voltage
VOL
IOL = 8.0 mA
IOL = 3.2 mA
—
—
0.5
0.4
V
V
V
OL
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.
1
Table 41. JTAG AC Timing Specifications (Independent of CLKIN)
At recommended operating conditions (see Table 2).
Parameter
Symbol2
Min
Max
Unit
Notes
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
fJTG
t JTG
0
33.3
—
—
2
MHz
ns
—
—
—
—
3
30
15
0
tJTKHKL
tJTGR, tJTGF
tTRST
ns
ns
25
—
ns
Input setup times:
ns
Boundary-scan data
tJTDVKH
tJTIVKH
4
4
—
—
4
4
5
5
TMS, TDI
Input hold times:
Valid times:
ns
ns
ns
Boundary-scan data
TMS, TDI
tJTDXKH
tJTIXKH
10
10
—
—
Boundary-scan data
TDO
tJTKLDV
tJTKLOV
2
2
11
11
Output hold times:
Boundary-scan data
TDO
tJTKLDX
tJTKLOX
2
2
—
—
MPC8349EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 13
Freescale Semiconductor
42
FREESCALE [ Freescale ]
