MPC8313ECVRGDF datasheet(30/100 Pages) FREESCALE

30 / 100 page

MPC8313E PowerQUICC™ II Pro Processor Hardware Specifications, Rev. 2.1

Freescale Semiconductor

Ethernet: Three-Speed Ethernet, MII Management

Figure 16. SGMII Transmitter DC Measurement Circuit

8.3.4

SGMII AC Timing Specifications

This section describes the SGMII transmit and receive AC timing specifications. Transmitter and receiver

characteristics are measured at the transmitter outputs (TX[n] and TX[n]) or at the receiver inputs (RX[n]

and RX[n]) as depicted in Figure 18, respectively.

Table 33. SGMII DC Receiver Electrical Characteristics

Parameter

Symbol

Min

Typ

Max

Unit

Notes

Supply voltage

XCOREVDD

0.95

1.0

1.05

DC Input voltage range

N/A

Input differential voltage

VRX_DIFFp-p

100

—

1200

Loss of signal threshold

VLOS

—

100

Input AC common mode voltage

VCM_ACp-p

——

100

Receiver differential input impedance

ZRX_DIFF

100

120

Receiver common mode input impedance

ZRX_CM

—

Common mode input voltage

VCM

—Vxcorevss

—V

Notes:

1. Input must be externally AC-coupled.

2. VRX_DIFFp-p is also referred to as peak to peak input differential voltage

3. VCM_ACp-p is also referred to as peak to peak AC common mode voltage.

4. On-chip termination to XCOREVSS.

Vos

VOD

MPC8313E SGMII

SerDes Interface

Transmitter

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