MPC8378E datasheet(13/127 Pages) FREESCALE

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MPC8378E PowerQUICC II Pro Processor Hardware Specifications, Rev. 4

Freescale Semiconductor

Clock Input Timing

This section provides the clock input DC and AC electrical characteristics for the MPC8378E. Note that

the PCI_CLK/PCI_SYNC_IN signal or CLKIN signal is used as the PCI input clock depending on

whether the device is configured as a host or agent device. CLKIN is used when the device is in host mode.

4.1

DC Electrical Characteristics

Table 7 provides the clock input (CLKIN/PCI_CLK) DC timing specifications for the device.

eTSEC I/O

Load =

25 pf

MII or RMII

—

0.02

—

Multiply by

number of

interfaces used.

SGMII

—

0.029

—

RGMII or

RTBI

—

0.05

—

USB

(60MHz

Clock)

12 Mbps

—

0.01

—

480 Mbps

—

0.2

—

SerDes

per lane

—

0.029

—

Other I/O

—

0.01

—

Note: The values given are for typical, and not worst case, switching.

Table 7. CLKIN DC Electrical Characteristics

Parameter

Condition

Symbol

Min

Max

Unit

Notes

Input high voltage

—

VIH

2.7

OVDD + 0.3

Input low voltage

—

VIL

–0.3

0.4

CLKIN Input current

0 V

≤ V

IN ≤ OVDD

IIN

—± 10

μA—

PCI_CLK Input current

0 V

≤ V

IN ≤ 0.5 V or

OVDD – 0.5 V ≤ VIN ≤ OVDD

IIN

—± 30

μA—

Note:

1 In PCI agent mode, this specification does not comply with PCI 2.3 Specification.

Table 6. MPC8378E Typical I/O Power Dissipation (continued)

Interface

Parameter

GVDD

(1.8 V)

GVDD/LBVDD

(2.5 V)

OVDD

(3.3 V)

LVDD

(3.3 V)

LVDD

(2.5 V)

L[1,2]_nVDD

(1.0 V)

Unit

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