Freescale Semiconductor MPC830x PowerQUICC II Pro Processor Evaluation Kit MPC8309-KIT MPC8309-KIT Fiche De Données

Freescale Semiconductor

27

 

The following figure shows the RMII receive AC timing diagram.

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 
MII, and RMII are specified in 

characteristics.”

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 the following table.

The following table provides the MII management AC timing specifications.

Supply voltage (3.3 V)

OV

DD

—

3

3.6

V

Output high voltage

V

OH

I

OH

= –1.0 mA

OV

DD

= Min

2.40

OV

DD

 + 0.3

V

Output low voltage

V

OL

I

OL

= 1.0 mA

OV

DD

= Min

GND 0.

50

V

Input high voltage

V

IH

—

2.00

—

V

Input low voltage

V

IL

—

—

0.80

V

Input current

I

IN

0 V

≤ V

IN

≤ OV

DD

—

±5

μA

At recommended operating conditions with OV

DD

 is 3.3 V ± 300mV. 

MDC frequency 

f

MDC

—

2.5

—

MHz

—

MDC period

t

MDC

—

400

—

ns

—

MDC clock pulse width high

t

MDCH

32

—

—

ns

—

REF_CLK

RXD[1:0]

t

RMRDXKH

t

RMX

t

RMXH

t

RMXR

t

RMXF

CRS_DV

RX_ER

t

RMRDVKH

Valid Data