EVB-USB5734 Datasheet, PDF (18/37 Pages) Microchip Technology – EVB-USB5734 Evaluation Board User’s Guide

EVB-USB5734 Evaluation Board User’s Guide
FIGURE 2-7:
STRAPPING OPTIONS
TABLE 2-2: STRAPPING OPTIONS FOR BATTERY CHARGING
SW5 Position
Configuration
1
No Ports BC Enabled
2
Port 1 is BC Enabled
3
Port 1 & 2 are BC Enabled
4
Port 1, 2 & 3 are BC Enabled
5
Port 1, 2, 3 & 4 are BC Enabled [default]
6
Reserved
TABLE 2-3: STRAPPING OPTIONS FOR PORT REMOVABLE
SW6 Position
Configuration
1
All ports are Removable [default]
2
Port 1 is Non-Removable
3
Port 1 & 2 are Non-Removable
4
Port 1, 2 & 3 are Non-Removable
5
Port 1, 2, 3 & 4 are Non-Removable
6
Reserved
2.4.6 Port Power Options: Port Enable and Port Disable Select
Any downstream facing port on the EVB-USB5734 can be disabled if desired. When
both DP & DM signals are pulled high to +3.3V, the USB5734 automatically disables
the port, reports the corrected number of available ports to the host, and drives the
PRT_CTRL line for the disabled port(s) low. By default, all four downstream facing ports
are enabled.
To enable a port, use its Port Enable switch (SW1 - SW4) to select the EN. position.
The associated “Enable” LED will light green.
To disable a port, slide its Port Enable switch (SW1 - SW4) to the Dis. position. The
“Enable” LED will turn off.
The table below describes the port enable/disable strap options available for all four
downstream ports on the USB5734.
TABLE 2-4: PORT ENABLE/DISABLE STRAP OPTIONS
Downstream
Port
Associated
Switch
Switch Position
1
SW1
1-2, 4-5 = Port Enabled (Default)
2-3, 5-6 = Port Disabled
2
SW2
1-2, 4-5 = Port Enabled (Default)
2-3, 5-6 = Port Disabled
LED
D7 Green
D7 OFF
D8 Green
D8 OFF
DS50002350B-page 18
 2015 Microchip Technology Inc.