MPC8569E datasheet(60/127 Pages) FREESCALE

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MPC8569E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 1

Ethernet Interface

Freescale Semiconductor

The following figure provides the AC test load.

Figure 20. AC Test Load

The following figure shows the RMII receive AC timing diagram.

Figure 21. RMII Receive AC Timing Diagram

2.6.3.5

TBI AC Timing Specifications

This section describes the TBI transmit and receive AC timing specifications.

Fall time REF_CLK (80%–20%)

tRMRF

1.0

—

4.0

RXD[1:0], CRS_DV, RX_ER setup time to REF_CLK rising

edge

tRMRDV

4.0

—

RXD[1:0], CRS_DV, RX_ER hold time to REF_CLK rising edge

tRMRDX

2.0

—

Note:

1. System/board must be designed to ensure the input requirement to the device is achieved. Proper device operation is

guaranteed for inputs meeting this requirement by design, simulation, characterization, or functional testing.

Table 31. RMII Receive AC Timing Specifications (continued)

For recommended operating conditions, see Table 3

Parameter

Symbol

Min

Typ

Max

Unit

Note

Output

Z0 = 50 Ω

LVDD/2

RL = 50 Ω

REF_CLK

RXD[1:0]

tRMRKHDX

tRMR

tRMRH

tRMRR

tRMRF

CRS_DV

RX_ER

tRMRDVKH

Valid Data

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