MPC8379E datasheet(52/117 Pages) FREESCALE

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MPC8379E PowerQUICC II Pro Processor Hardware Specifications, Rev. 8

Freescale Semiconductor

12.1

JTAG DC Electrical Characteristics

This table provides the DC electrical characteristics for the IEEE 1149.1 (JTAG) interface of the chip.

12.2

JTAG AC Timing Specifications

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

This table provides the JTAG AC timing specifications as defined in Figure 33 through Figure 36.

Table 44. JTAG interface DC Electrical Characteristics

Parameter

Symbol

Condition

Min

Max

Unit

Input high voltage

VIH

—2.5

OVDD +0.3

Input low voltage

VIL

—–0.3

0.8

Input current

IIN

——

±30

μA

Output high voltage

VOH

IOH = –8.0 mA

2.4

—

Output low voltage

VOL

IOL = 8.0 mA

—

0.5

Output low voltage

VOL

IOL = 3.2 mA

—

0.4

Table 45. JTAG AC Timing Specifications (Independent of CLKIN) 1

Parameter

Symbol2

Min

Max

Unit

Note

JTAG external clock frequency of operation

fJTG

033.3

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

—

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