MPC8572ECLPXATLD datasheet(29/140 Pages) FREESCALE

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MPC8572E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 4

Freescale Semiconductor

Ethernet: Enhanced Three-Speed Ethernet (eTSEC)

The Fast Ethernet Controller (FEC) operates in MII mode only, and complies with the AC and DC

electrical characteristics specified in this chapter for MII. Note that if FEC is used, eTSEC 3 and 4 are only

available in SGMII mode.

8.1.1

eTSEC DC Electrical Characteristics

All MII, GMII, RMII, and TBI drivers and receivers comply with the DC parametric attributes specified

in Table 22 and Table 23. All RGMII, RTBI and FIFO drivers and receivers comply with the DC

parametric attributes specified in Table 23. The RGMII and RTBI signals are based on a 2.5-V CMOS

interface voltage as defined by JEDEC EIA/JESD8-5.

Table 22. GMII, MII, RMII, and TBI DC Electrical Characteristics

Parameter

Symbol

Min

Max

Unit

Notes

Supply voltage 3.3 V

LVDD

TVDD

3.13

3.47

1, 2

1 LV

DD supports eTSECs 1 and 2.

2 TV

DD supports eTSECs 3 and 4 or FEC.

Output high voltage

(LVDD/TVDD = Min, IOH = –4.0 mA)

VOH

2.40

LVDD/TVDD + 0.3

—

Output low voltage

(LVDD/TVDD = Min, IOL = 4.0 mA)

VOL

GND

0.50

—

Input high voltage

VIH

2.0

LVDD/TVDD + 0.3

—

Input low voltage

VIL

–0.3

0.90

—

Input high current

(VIN = LVDD, VIN = TVDD)

IIH

—40

μA

1, 2,3

3 The symbol V

IN, in this case, represents the LVIN and TVIN symbols referenced in Table 1.

Input low current

(VIN = GND)

IIL

–600

—

μA

Notes:

Table 23. MII, GMII, RMII, RGMII, TBI, RTBI, and FIFO DC Electrical Characteristics

Parameters

Symbol

Min

Max

Unit

Notes

Supply voltage 2.5 V

LVDD/TVDD

2.37

2.63

1,2

Output high voltage

(LVDD/TVDD = Min, IOH = –1.0 mA)

VOH

2.00

LVDD/TVDD + 0.3

—

Output low voltage

(LVDD/TVDD = Min, IOL = 1.0 mA)

VOL

GND – 0.3

0.40

—

Input high voltage

VIH

1.70

LVDD/TVDD + 0.3

—

Input low voltage

VIL

–0.3

0.70

—

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