MPC8560 datasheet(36/108 Pages) FREESCALE

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MPC8560 Integrated Processor Hardware Specifications, Rev. 3.1

Freescale Semiconductor

Figure 15 shows the MII management AC timing diagram.

Figure 15. MII Management Interface Timing Diagram

MDC fall time

tMDHF

—

Notes:

1.The symbols used for timing specifications herein follow the pattern of t(first two letters of functional block)(signal)(state)

(reference)(state) for inputs and t(first two letters of functional block)(reference)(state)(signal)(state) for outputs. For example, tMDKHDX

symbolizes management data timing (MD) for the time tMDC from clock reference (K) high (H) until data outputs (D) are

invalid (X) or data hold time. Also, tMDDVKH symbolizes management data timing (MD) with respect to the time data

input signals (D) reach the valid state (V) relative to the tMDC clock reference (K) going to the high (H) state or setup

time. For rise and fall times, the latter convention is used with the appropriate letter: R (rise) or F (fall).

2.This parameter is dependent on the system clock speed (that is, for a system clock of 267 MHz, the maximum frequency

is 8.3 MHz and the minimum frequency is 1.2 MHz; for a system clock of 333 MHz, the maximum frequency is

10.4 MHz and the minimum frequency is 1.5 MHz).

3.This parameter is dependent on the system clock speed (that is, for a system clock of 267 MHz, the delay is 60 ns and

for a system clock of 333 MHz, the delay is 48 ns).

4.Guaranteed by design.

Table 28. MII Management AC Timing Specifications (continued)

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

Parameter/Condition

Symbol 1

Min

Typ

Max

Unit

Notes

MDC

tMDDXKH

tMDC

tMDCH

tMDCR

tMDCF

tMDDVKH

tMDKHDX

MDIO

(Input)

(Output)

tMDKHDV

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