Microchip Technology EVB-USB7056, Руководство пользователя

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Hardware Configuration
 2019 Microchip Technology Inc. DS50002887A-page 21
3.1.6 DisplayPort Alternate Mode
The EVB-USB7056 supports DisplayPort (DP) Alternate Mode on the upstream USB
Type-C PD port. The on-board crossboard multiplexer and DP redriver ICs can support
up to DisplayPort v1.3. The following DP Alternate Modes are supported:
• DisplayPort Mode C: 4-Lane DP Alternate Mode (no USB3.1)
• DisplayPort Mode D: 2-Lane DP Alternate Mode with USB3.1 Gen1
The USB host PC that is attached to the upstream Type-C port always determines
which of the DP Alternate Modes (2-Lane or 4-Lane) will be entered. Note that a 4-Lane
DP Alternate Mode uses all four SuperSpeed differential pairs of the Type-C cable and
the USB3.1 Gen 1 connectivity is lost.
The DisplayPort signals are multiplexed and redriven to a standard DisplayPort Source
receptacle. Any DisplayPort monitor display can be attached to the EVB-USB7056 via
this connector. The J31 connector is located on the bottom side of the PCB.
FIGURE 3-8: EVB-USB7056 DISPLAYPORT CONNECTOR
3.1.7 ‘PM-PD’ Plug-in Power Delivery Module
A ‘PM-PD’ module is a PD daughter card that includes a DC/DC regulator that provides
the negotiated voltage to the upstream Port 0 PD port. The modular nature of this
design allows for alternate DC/DC regulators of different architectures or capabilities to
be developed and tested with the USB7056.
By default, the EVB-USB7056 includes a 60W-capable ‘PM-PD’ that is controlled using
GPIOs (one voltage selection pin per voltage) to deliver 5V, 9V, 15V, or 20V at up to 3A.
The EVB-USB7056 design can support a ‘PM-PD’ with up to 100W of power-sourcing
capabilities. The EVB-USB7056 can also accommodate ‘PM-PDs’ that are controlled
using GPIO or I
2
C.
Note: If testing with any ‘PM-PD’ other than the one provided with the
EVB-USB7056 is required, please contact Microchip customer support for
assistance with ensuring that PM-PD technical requirements are satisfied.
Alternate ‘PM-PDs’ may also require customized firmware to operate cor -
rectly.
DisplayPort Alternate Mode with attached host
DisplayPort
source
(bottom side)
To
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