MPC8323E datasheet(30/82 Pages) FREESCALE

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MPC8323E PowerQUICC II Pro Integrated Communications Processor Family Hardware Specifications, Rev. 4

Freescale Semiconductor

JTAG

10.2

JTAG AC Electrical Characteristics

This section describes the AC electrical specifications for the IEEE Std. 1149.1 (JTAG) interface of the

MPC8323E. Table 32 provides the JTAG AC timing specifications as defined in Figure 19 through

Figure 22.

Input low voltage

VIL

—

–0.3

0.8

Input current

IIN

0 V

≤ VIN ≤ OVDD

—±5

μA

Table 32. JTAG AC Timing Specifications (Independent of CLKIN)1

At recommended operating conditions (see Table 2).

Parameter

Symbol2

Min

Max

Unit

Notes

JTAG external clock frequency of operation

fJTG

33.3

MHz

—

JTAG external clock cycle time

t JTG

—

JTAG external clock pulse width measured at 1.4 V

tJTKHKL

—

JTAG external clock rise and fall times

tJTGR, tJTGF

—

TRST assert time

tTRST

—

Input setup times:

Boundary-scan data

TMS, TDI

tJTDVKH

tJTIVKH

—

Input hold times:

Boundary-scan data

TMS, TDI

tJTDXKH

tJTIXKH

—

Valid times:

Boundary-scan data

TDO

tJTKLDV

tJTKLOV

Output hold times:

Boundary-scan data

TDO

tJTKLDX

tJTKLOX

—

Table 31. JTAG Interface DC Electrical Characteristics (continued)

Characteristic

Symbol

Condition

Min

Max

Unit

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