HD3SS2521

SLAS941A – APRIL 2013 – REVISED MAY 2013

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PIN FUNCTIONS

SIGNAL

DockPort HOST

DockPort DEVICE

SPEED

PIN

I/O

PIN NAME

(SIGNAL MUX)

(SIGNAL DE-MUX)

(MAX)

2

I/O

A0P

DockPort Lane 2, Positive Signal

Fast Lane

(DockPort cable between DockPort host and DockPort device)

(Up to

5.4Gbps)

3

I/O

A0N

DockPort Lane 2, Negative Signal

(DockPort cable between DockPort host and DockPort device)

5

I/O

A1P

DockPort Lane 3, Positive Signal (DockPort cable between DockPort host and

DockPort device)

6

I/O

A1N

DockPort Lane 3, Negative Signal (DockPort cable between DockPort host and

DockPort device)

48

I/O

B0P

DisplayPort Lane 2, Positive Signal

Fast Lane

(Up to

47

I/O

B0N

DisplayPort Lane 2, Negative Signal

5.4Gbps)

46

I/O

B1P

DisplayPort Lane 3, Positive Signal

45

I/O

B1N

DisplayPort Lane 3, Negative Signal

44

I/O

C0P

SuperSpeed USB TX, Positive Signal

SuperSpeed USB RX, Positive

Fast Lane

Signal

(Up to

5.4Gbps)

43

I/O

C0N

SuperSpeed USB TX, Negative Signal

SuperSpeed USB RX, Negative

Signal

42

I/O

C1P

SuperSpeed USB RX, Positive Signal

SuperSpeed USB TX, Positive Signal

41

I/O

C1N

SuperSpeed USB RX, Negative Signal

SuperSpeed USB TX, Negative

Signal

11

I/O

ADP

DockPort Config1 (DockPort cable between DockPort host and DockPort device) Supports High-

speed USB

10

I/O

ADM

DockPort Config2 (DockPort cable between DockPort host and DockPort device)

35

I/O

BDP

CONFIG 1

36

I/O

BDM

CONFIG 2

37

I/O

CDP

High-speed USB D+

38

I/O

CDM

High-speed USB D-

7

I

SS_SEL_IN

DisplayPort / SuperSpeed USB Mux Select (Connect to SS_SEL_OUT - Pin 20)

12

I

HS_SEL_IN

DisplayPort / HighSpeed USB Mux Select (Connect to HS_SEL_OUT - Pin 19)

8

I

RSVD

N/C

N/C

(SS_OE#_IN)

For future compatibility (Connect to

Requires external 10 k

Ω Pull-down.

RSVD [SS_OE#_OUT] signal - Pin 34)

9

I

HS_OE#_IN

DisplayPort / HighSpeed USB Mux Enable (Connect to HS_OE#_OUT - Pin 32)

15

I/O

MODE_LED

This signal is sampled at power on or

This signal is sampled at power on or

reset to determine the mode of operation: reset to determine the mode of

operation:

Pulled High for DockPort host operation.

(Optionally through LED for debug

Pulled Low for DockPort hub

purposes)

(dock/dongle) operation. (Optionally

through LED for debug purposes)

16

I

HPD_IN

Hot Plug Detect from DockPort device

Hot Plug Detect from MST Hub/DP

Device

17

O

HPD_OUT

Hot Plug Detect to System Graphics

Hot Plug Detect to DockPort host.

18

I/O

AUX_N

AUX Negative Pull-Up to DockPort

AUX Negative from DockPort host

device (Output)

(Input)

This signal indicates a connection event

This signal is used to detect a

to a DockPort device.

connection event from a DockPort

host.

6

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