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PI3WVR31310A

DP/HDMI 1:3 De-mux/Mux switches

www.pericom.com

10/30/15

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HPD from selected-active port

HPD_SRC

t1 (<2ms)

t1 is the IRQ-HPD (sink) from selected-active port

Priority Setting

HPD_SRC

t3 (1s)

All Channels Hi-Z

Event of priority setting change

Low for HPDs other than HPDx. HPDx is the HPD of the only port with plugging-in

HPDx

HPD_SRC

All Channels Hi-Z

HPDx port is active

Selected port is active

Selected port is active

Selected port is active

Selected port is active

t1 (<2ms)

New selected port is active

t3 (1s)

All Channels Hi-Z

Fig 4. HPD timing t1. HPD_SRC low and the active of selected port will follow t1, if t1 further extended

less than t2 (125ms) when auto switch and manual switch

Fig 5. HPD timing t3. All channels” include DP-HDMI data, AUX, DDC, HPD and CAB_DET when auto

switch

Fig 6. HPD timing t3 when auto switch

15-0139