MPC8572ECLPXATLD datasheet(51/140 Pages) FREESCALE

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MPC8572E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 4

Freescale Semiconductor

Ethernet Management Interface Electrical Characteristics

9.2

MII Management AC Electrical Specifications

Table 44 provides the MII management AC timing specifications.There are three sets of Ethernet

management signals (EC1_MDC and EC1_MDIO, EC3_MDC and EC3_MDIO, EC5_MDC and

EC5_MDIO). These are not explicitly shown in the table or in the figure following.

Input low current

(LVDD/TVDD = Max, VIN = 0.5 V)

IIL

–600

—

μA—

Note:

1. EC1_MDC and EC1_MDIO operate on LVDD.

2. EC3_MDC & EC3_MDIO and EC5_MDC & EC5_MDIO operate on TVDD.

3. Note that the symbol VIN, in this case, represents the LVIN and TVIN symbol referenced in Table 1.

Table 43. MII Management DC Electrical Characteristics (LVDD/TVDD=2.5 V)

Parameters

Symbol

Min

Max

Unit

Notes

Supply voltage 2.5 V

LVDD/TVDD

2.37

2.63

1,2

1 EC1_MDC and EC1_MDIO operate on LV

DD.

2 EC3_MDC & EC3_MDIO and EC5_MDC & EC5_MDIO operate on TV

DD.

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

—

Input high current

(VIN = LVDD, VIN = TVDD)

IIH

—10

μA

1, 2,3

3 Note that the symbol V

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

Input low current

(VIN = GND)

IIL

–15

—

μA

Note:

Table 44. MII Management AC Timing Specifications

At recommended operating conditions with LVDD/TVDD of 3.3 V ± 5% or 2.5 V ± 5%.

Parameter/Condition

Symbol 1

Min

Typ

Max

Unit

Notes

ECn_MDC frequency

fMDC

0.9

2.5

9.3

MHz

2, 3

ECn_MDC period

tMDC

107.5

—

1120

—

ECn_MDC clock pulse width high

tMDCH

—

ECn_MDC to ECn_MDIO delay

tMDKHDX

—

16*tplb_clk

ECn_MDIO to ECn_MDC setup time

tMDDVKH

5—

—

Table 42. MII Management DC Electrical Characteristics(LVDD/TVDD=3.3 V) (continued)

Parameter

Symbol

Min

Max

Unit

Notes

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