MPC8560CPXAPDB datasheet(35/108 Pages) FREESCALE

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MPC8560 Integrated Processor Hardware Specifications, Rev. 3.1

Freescale Semiconductor

7.3 Ethernet Management Interface Electrical Characteristics

The electrical characteristics specified here apply to MII management interface signals MDIO (management data

input/output) and MDC (management data clock). The electrical characteristics for GMII, RGMII, TBI and RTBI

are specified in Section 7.1, “Three-Speed Ethernet Controller (TSEC)

(10/100/1Gb Mbps)—GMII/MII/TBI/RGMII/RTBI Electrical Characteristics.”

7.3.1 MII Management DC Electrical Characteristics

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

and MDC are provided in Table 27.

7.3.2 MII Management AC Electrical Specifications

Table 28 provides the MII management AC timing specifications.

Table 27. 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 = –1.0 mA)

VOH

2.10

OVDD + 0.3

Output low voltage

(OVDD = Min, IOL = 1.0 mA)

VOL

GND

0.50

Input high voltage

VIH

1.70

—

Input low voltage

VIL

—

0.90

Input high current

(OVDD = Max, VIN

1 = 2.1 V)

IIH

—

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 28. 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

MDC frequency

fMDC

2.5

—

10.4

MHz

2, 4

MDC period

tMDC

—

400

MDC clock pulse width high

tMDCH

—

MDC to MDIO valid

tMDKHDV

2*(t(ccb_clk/8))

MDC to MDIO delay

tMDKHDX

—

MDIO to MDC setup time

tMDDVKH

—

MDIO to MDC hold time

tMDDXKH

—

MDC rise time

tMDCR

—

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