LAN9252SLASHPT datasheet(74/329 Pages) MICROCHIP

No. de pieza	LAN9252/PT

Descripción Electrónicos	2/3-Port EtherCAT® Slave Controller with Integrated Ethernet PHYs

PDF	329 Pages

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Fabricante Electrónico	MICROCHIP [Microchip Technology]

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LAN9252

DS00001909A-page 74

 2015 Microchip Technology Inc.

9.4.4.2

Single Phase Address Latching

The figures in this section detail multiplexed addressing mode with single phase addressing for 16 and 8-bit modes of

operation.

16-BIT READ

The address is latched simultaneously from AD[7:0] and AD[15:8]. A read on AD[15:0] follows. The cycle is repeated

for the other 16-bits of the DWORD.

16-BIT WRITE

The address is latched simultaneously from AD[7:0] and AD[15:8]. A write on AD[15:0] follows. The cycle is repeated

for the other 16-bits of the DWORD.

FIGURE 9-13:

MULTIPLEXED ADDRESSING WITH SINGLE PHASE LATCHING - 16-BIT READ

FIGURE 9-14:

MULTIPLEXED ADDRESSING WITH SINGLE PHASE LATCHING - 16-BIT WRITE

ALELO

ALEHI

Address Low

Data 15:8

Data 7:0

Address+1 Low

Data 31:24

Data 23:16

Address High

Optional

AD[15:8]

AD[7:0]

ALELO

ALEHI

Address Low

Data 15:8

Data 7:0

Address+1 Low

Data 31:24

Data 23:16

Address High

Optional

AD[15:8]

AD[7:0]

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