MPC8535E datasheet(61/126 Pages) FREESCALE

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Ethernet Management Interface Electrical Characteristics

MPC8535E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 3

Freescale Semiconductor

2.10.1

MII Management DC Electrical Characteristics

The EC_MDC and EC_MDIO are defined to operate at a supply voltage of 3.3 V. The DC electrical characteristics for

EC_MDIO and EC_MDC are provided in Table 44.

2.10.2

MII Management AC Electrical Specifications

Table 45 provides the MII management AC timing specifications.

Table 44. MII Management DC Electrical Characteristics

Parameter

Symbol

Min

Max

Unit

Supply voltage (3.3 V)

OVDD

3.13

3.47

Output high voltage

(OVDD = Min, IOH = –4.0 mA)

VOH

2.40

OVDD + 0.3

Output low voltage

(OVDD =Min, IOL = 4.0 mA)

VOL

GND

0.40

Input high voltage

VIH

2.0

—

Input low voltage

VIL

—0.90

Input high current

(OVDD = Max, VIN

1 = 2.1 V)

IIH

—40

μA

Input low current

(OVDD = Max, VIN = 0.5 V)

IIL

–600

—

μA

Note:

1. Note that the symbol VIN, in this case, represents the OVIN symbol referenced in Table 1 and Table 2.

Table 45. MII Management AC Timing Specifications

At recommended operating conditions with OVDD is 3.3 V ± 5%.

Parameter/Condition

Symbol 1

Min

Typ

Max

Unit

Notes

EC_MDC frequency

fMDC

0.74

2.5

8.3

MHz

EC_MDC period

tMDC

120

400

1350

—

EC_MDC clock pulse width high

tMDCH

—

EC_MDC to EC_MDIO delay

tMDKHDX

(16 * tplb_clk)-3

—

(16 * tplb_clk)+3

3,5,6

EC_MDIO to EC_MDC setup time

tMDDVKH

5—

—

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