Datasheet

TMDS261B

SLLS987A –SEPTEMBER 2009–REVISED JULY 2011

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Table 1. Source Selection Lookup

(1)

CONTROL PINS I/O SELECTED HOT-PLUG DETECT STATUS Power Mode

SCL_SINK

S2 S1 Port Selected HPD1 HPD2

SDA_SINK

Port 1

SCL1

H H Terminations of port 2 HPD_SINK L Normal mode

SDA1

are disconnected.

Port 2

SCL2

H L Terminations of port 1 L HPD_SINK Normal mode

SDA2

are disconnected.

Disallowed

(Indeterminate state, all

L L L L Normal Mode

None (Z)

terminations are

Are pulled HIGH by

disconnected)

external pullup

None (Z)

termination

L H All terminations are HPD_SINK HPD_SINK Standby mode

disconnected.

(1) H: Logic high; L: Logic low; X: Don't care; Z: High impedance