MPC8349VVAGDB View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

MFG CO.

MPC8349VVAGDB

PowerQUICC II Pro Integrated Host Processor Hardware Specifications

Freescale Semiconductor 

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Ethernet: Three-Speed Ethernet, MII Management

Figure 16 shows the RBMII and RTBI AC timing and multiplexing diagrams.

GTX_CLK

(At Transmitter)

TXD[8:5][3:0]

TXD[7:4][3:0]

TXD[3:0]

TXD[8:5]

TXD[7:4]

tRGTH

tSKRGT

tRGT

TX_CTL

TX_CLK

(At PHY)

TXD[4] TXD[9]

TXEN TXERR

tSKRGT

RXD[8:5][3:0]

RXD[7:4][3:0]

RX_CTL

RX_CLK

(At PHY)

RXD[3:0]

RXD[8:5]

RXD[7:4]

RXD[4] RXD[9]

RXDV RXERR

tSKRGT

tSKRGT

Figure 16. RGMII and RTBI AC Timing and Multiplexing Diagrams

8.3 Ethernet Management Interface Electrical Characteristics

The electrical characteristics specified here apply to the MII management interface signals management

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

RGMII, TBI and RTBI are specified in Section 8.1, “Three-Speed Ethernet Controller

(TSEC)—GMII/MII/TBI/RGMII/RTBI Electrical Characteristics.”

8.3.1 MII Management DC Electrical Characteristics

The MDC and MDIO are defined to operate at a supply voltage of 2.5 or 3.3 V. The DC electrical

characteristics for MDIO and MDC are provided in Table 32 and Table 33.

Table 32. MII Management DC Electrical Characteristics Powered at 2.5 V

Parameter

Supply voltage (2.5 V)

Output high voltage

Output low voltage

Input high voltage

Input low voltage

Symbol

LVDD

VOH

VOL

VIH

VIL

Conditions

—

IOH = –1.0 mA

IOL = 1.0 mA

—

—

LVDD = Min

LVDD = Min

LVDD = Min

LVDD = Min

Min

2.37

2.00

GND – 0.3

1.7

–0.3

Max

2.63

LVDD + 0.3

0.40

—

0.70

Unit

V

V

V

V

V

MPC8349EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 13

Freescale Semiconductor

31

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