A Product Line of

Diodes Incorporated

PI2DPX2023

8

www.diodes.com

July 2022

Diodes Incorporated

PI2DPX2023

Document Number DS43532 Rev 4-2

Power Down Mode

D3 Power Saving Mode

Standby Mode

Active Mode

EN

Power-up

EN low

Enter D3

AUX Cmd

HPD low

for >t HPD

HPD low

for >tHPD

HPD high

AUX link

training

started

Exit D3

AUX Cmd

EN low

EN high

Figure 3. DisplayPort Operation Modes

DisplayPort Main Link

The electrical sub-block of a DP Main-Link consists of up to four differential pairs. The DP TX drives doubly terminated, AC-coupled

differential pairs in a manner compliant with the Main-Link Transmitter electrical specification.

Table 2. Description of DP Operating Mode

State

Mode

Description

1

Power Down Mode Lowest power consumption (most circuitries are off); all outputs are high-impedance; All

inputs are ignored. AUX listener is turned OFF.

2

Standby Mode

Low power consumption (AUX listener is OFF); Main Link outputs are disabled

3

Active Mode

Data transfer (normal operation);

AUX listener is active. The AUX listener is actively monitoring for Link Training. At power-up

all Main Link outputs are enabled by default.

4

D3 Power Saving Mode Low power consumption(AUX listener is active); Main Link outputs are disabled

Note: tHPD = 327 ms typ