IXP45X datasheet(121/148 Pages) INTEL

номер детали	IXP45X

подробное описание детали	Product Line of Network Processors

PDF	148 Pages

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производитель	INTEL [Intel Corporation]

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Intel® IXP45X and Intel® IXP46X Product Line of Network Processors

August 2006

Datasheet

Document Number: 306261-004US

121

Datasheet—Intel® IXP45X and Intel® IXP46X Product Line of Network Processors

Figure 24.

Source Synchronous SMII Input Timings

Table 59.

Source Synchronous SMII Input Timings Values

Symbol

Parameter

Min.

Max.

Units

Notes

SMII_RXD and SMII_RXSYNC setup time prior to

rising edge of SMII_RXCLK

1.5

SMII_RXD and SMII_RXSYNC hold time after the

rising edge of SMII_CLK

1ns

Notes:

Timing was designed for a system load between 5pF and 15pF

Figure 25.

MII Output Timings

Table 60.

MII Output Timings Values

Symbol

Parameter

Min.

Max.

Units

Notes

Clock to output delay for ETH_TXDATA and

ETH_TXEN.

12.5

1, 2

ETH_TXDATA and ETH_TXEN hold time after

ETH_TXCLK.

1.5

Notes:

These values satisfy t the MII specification requirement of 0 ns to 25 ns clock to output delay.

Timing was designed for a system load between 5 pF and 15 pF.

SMII_RXCLK

SMII_INPUTS

A9580-01

eth_tx_clk

eth_tx_data[7:0]

eth_tx_en

eth_crs

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