MPC8313E datasheet(29/92 Pages) FREESCALE

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MPC8313E PowerQUICC™ II Pro Processor Hardware Specifications, Rev. 1

Freescale Semiconductor

Ethernet: Three-Speed Ethernet, MII Management

8.3

eTSEC IEEE 1588 AC Specifications

Figure 14 provides the data and command output timing diagram.

1 The output delay is count starting rising edge if t

T1588CLKOUT is non-inverting. Otherwise, it is count starting falling edge.

Figure 14. eTSEC IEEE 1588 Output AC Timing

Figure 15 provides the data and command input timing diagram.

Figure 15. eTSEC IEEE 1588 Input AC Timing

The IEEE 1588 AC timing specifications are in Table 30.

Table 30. eTSEC IEEE 1588 AC Timing Specifications

At recommended operating conditions with L/TVDD of 3.3 V ± 5%.

Parameter/Condition

Symbol

Min

Typ

Max

Unit

Note

TSEC_1588_CLK clock period

tT1588CLK

3.8

—

TRX_CLK × 9

1, 3

TSEC_1588_CLK duty cycle

tT1588CLKH/tT1588CLK

—

TSEC_1588_CLK peak-to-peak jitter

tT1588CLKINJ

—

250

—

Rise time eTSEC_1588_CLK (20%–80%)

tT1588CLKINR

1.0

—

2.0

—

Fall time eTSEC_1588_CLK (80%–20%)

tT1588CLKINF

1.0

—

2.0

—

TSEC_1588_CLK_OUT clock period

tT1588CLKOUT

2*tT1588CLK

——

—

TSEC_1588_CLK_OUT

TSEC_1588_PULSE_OUT

TSEC_1588_TRIG_OUT

tT1588OV

tT1588CLKOUT

tT1588CLKOUTH

TSEC_1588_CLK

TSEC_1588_TRIG_IN

tT1588TRIGH

tT1588CLK

tT1588CLKH

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