TMC2074-NU Просмотр технического описания (PDF) - SMSC -> Microchip

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TMC2074-NU

Dual Mode CircLink™ Controller

SMSC -> Microchip 

Dual Mode CircLink™ Controller

Datasheet

1.6.2 Address Multiplex Selection

(nMUX/SCM[0]: Pin)

In peripheral mode, this pin specifies the system data bus from bit5 to 0 and whether or not the addresses

are multiplexed (Refer to Figure 5 - Non-Multiplex Bus). When the multiplexing bus option is selected, the

polarity of A2/ALE is specified based on A3/ALEPOL. In standalone mode, this pin is the clock-master-ID-

specification input SCM[0].

[In case of nMUX=H]\

D15-8

D7-0

A5-0

Data High Byte

Data Low Byte

Address

Figure 5 - Non-Multiplex Bus

[In Case of nMUX=L, ALEPOL=H]

1 Bus C ycle

D 1 5 -8

D 7 -6

A D 5 -0

ALE

Address

D ata H igh Byte

D ata bit7-6

D ata bit5-0

Figure 6 - Multiplex (Ale Falling-Edge Type)

SMSC TMC2074

Page 17

DATASHEET

Revision 0.1 (03-29-06)

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