MegaChips’ Proprietary Information –Confidential

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MCDP6000

USB Type-C DP Alt-Mode Switching Retimer

Contents

1.

Description.................................................................................................................................................. 8

2.

Application Overview.................................................................................................................................. 9

3.

Functional Description .............................................................................................................................. 10

3.1.

System Block Diagram ...................................................................................................................... 10

3.2.

MCDP6000 Block Diagram ............................................................................................................... 11

3.3.

Receiver PHY.................................................................................................................................... 12

3.4.

Transmitter PHY................................................................................................................................ 13

3.5.

DisplayPort Receiver Interface.......................................................................................................... 14

3.6.

AUX_CH, SBU Interface for DisplayPort Alternate Mode ................................................................. 15

AUX_CH latency mode .............................................................................................................. 16

3.7.

USB 3.2 x1 Interface ......................................................................................................................... 17

3.8.

USB Type-C Connector Facing Interface ......................................................................................... 17

3.9.

IC Operation ...................................................................................................................................... 18

3.9.1.

Bootstrap.................................................................................................................................... 18

3.9.2.

IC Top-Level State Machine ...................................................................................................... 20

3.9.3.

TWI Programmable Mode.......................................................................................................... 21

3.9.4.

Stand-Alone Mode ..................................................................................................................... 21

3.9.5.

Low Power Mode ....................................................................................................................... 21

3.9.6.

USB 3.2 x1 Retimer Operation .................................................................................................. 21

3.9.7.

DisplayPort Retimer Operation .................................................................................................. 23

3.10.

Power Supply ................................................................................................................................ 24

3.11.

Power Consumption ...................................................................................................................... 24

3.12.

System Interface............................................................................................................................ 25

3.12.1.

TWI......................................................................................................................................... 25

3.12.2.

XTAL Buffer Operation ........................................................................................................... 27

3.12.3.

Reference Clock Input............................................................................................................ 28