P5021 datasheet(118/155 Pages) NXP

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P5021 QorIQ Integrated Processor Data Sheet, Rev. 1

Electrical characteristics

Freescale Semiconductor

118

2.20.6

Aurora

This section describes the Aurora clocking requirements and AC and DC electrical characteristics.

2.20.6.1

Aurora DC electrical characteristics

This section describes the DC electrical characteristics for Aurora.

2.20.6.1.1

Aurora DC clocking requirements for SD_REF_CLKn and SD_REF_CLKn

Only SerDes bank 1 (SD_REF_CLK1 and SD_REF_CLK1) may be used for SerDes Aurora configurations based on the RCW

Configuration field SRDS_PRTCL. Aurora is not supported on SerDes banks 2-3.

For more information on these specifications, see Section 2.20.2, “SerDes reference clocks.”

2.20.6.1.2

Aurora transmitter DC electrical characteristics

This table defines the Aurora transmitter DC electrical characteristics.

2.20.6.1.3

Aurora receiver DC electrical characteristics

This table defines the Aurora receiver DC electrical characteristics for Aurora.

2.20.6.2

Aurora AC timing specifications

This section describes the AC timing specifications for Aurora.

2.20.6.2.1

Aurora AC clocking requirements for SD_REF_CLKn and SD_REF_CLKn

Only SerDes bank 1 (SD_REF_CLK1 and SD_REF_CLK1) may be used for SerDes Aurora configurations based on the RCW

Configuration field SRDS_PRTCL. Aurora is not supported on SerDes banks 2–3.

Please note that the XAUI clock requirements for SD_REF_CLKn and SD_REF_CLKn are intended to be used within the

clocking guidelines specified by either Section 2.20.2.3, “AC requirements for SerDes reference clocks” or Section 2.20.7.2.1,

“AC requirements for SATA REF_CLK.”

Table 75. Aurora transmitter DC electrical characteristics (XVDD = 1.5 V or 1.8 V)

For recommended operating conditions, see Table 3.

Parameter

Symbol

Min

Typical

Max

Unit

Differential output voltage

VDIFFPP

800

—

1600

mV p-p

Table 76. Aurora receiver DC electrical characteristics (XVDD = 1.5 V or 1.8 V)

For recommended operating conditions, see Table 3.

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Differential input voltage

VIN

120

900

1200

mV p-p

Note:

1. Measured at receiver

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