P5021 datasheet(77/155 Pages) NXP

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Electrical characteristics

P5021 QorIQ Integrated Processor Data Sheet, Rev. 1

Freescale Semiconductor

2.11.2

DUART AC electrical specifications

This table provides the AC timing parameters for the DUART interface.

2.12

Ethernet: data path three-speed Ethernet (dTSEC),

management interface, IEEE Std 1588

This section provides the AC and DC electrical characteristics for the data path three-speed Ethernet controller, the Ethernet

management interface, and the IEEE Std 1588 interface.

2.12.1

SGMII timing specifications

See Section 2.20.8, “SGMII interface.”

2.12.2

MII and RGMII timing specifications

This section discusses the electrical characteristics for the MII and RGMII interfaces.

Input current (OVIN = 0 V or OVIN = OVDD)IIN

—

±40

μA2

Output high voltage (OVDD = min, IOH = –2 mA)

VOH

2.4

—

Output low voltage (OVDD = min, IOL = 2 mA)

VOL

—0.4

—

Notes:

1. The symbol OVIN, in this case, represents the OVIN symbol referenced in Table 3.

2. The symbol OVIN, in this case, represents the OVIN symbol referenced in Section 2.1.2, “Recommended operating conditions.”

Table 31. DUART AC timing specifications

For recommended operating conditions, see Table 3.

Parameter

Value

Unit

Notes

Minimum baud rate

fPLAT/(2*1,048,576)

baud

Maximum baud rate

fPLAT/(2*16)

baud

1,2

Oversample rate

—

Notes:

1. fPLAT refers to the internal platform clock.

2. The actual attainable baud rate is limited by the latency of interrupt processing.

3. The middle of a start bit is detected as the eighth sampled 0 after the 1-to-0 transition of the start bit. Subsequent bit values

are sampled each 16th sample.

Table 30. DUART DC electrical characteristics (OVDD = 3.3 V) (continued)

For recommended operating conditions, see Table 3.

Parameter

Symbol

Min

Max

Unit

Notes

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