USB5533B datasheet(47/71 Pages) MICROCHIP

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 2012 - 2015 Microchip Technology Inc.

DS00001680C-page 47

USB5533B

5.6.24

PORT 1 OCS SELECT REGISTER

The bits in this register are configured via a configuration file. Users must not change the values of these settings

dynamically.

5.6.25

PORT 2 OCS SELECT REGISTER

The bits in this register are configured via a configuration file. Users must not change the values of these settings

dynamically.

3:0

PRT_SEL

R/W

This selects the source for the port power for port1

0000b - Port Power is disabled for this Port.

0001b - Port is on if USB2 port power is on

0010b - Port is on if USB3 port power is on

0011b - Port is on if USB2 or USB3 port power is on

0100b - Port is on if designated GPIO is on

All other values are reserved.

Note:

The port disable, port non-removable and combined mode bits must be set through a configuration file to

ensure functionality when the part enumerates.

TABLE 5-41:

PORT 1 OCS SELECT REGISTER

OCS_CFG_SEL1

(0X3C20)

Port 1 OCS Select

Bit

Name

R/W

Description

7:4

Reserved

R/W

Reserved.

3:0

OCS_SEL

R/W

This selects the source for the port power for port1

0000b - The port is disabled

0001b - OCS comes from OCS pin

0010b - OCS comes from GPIO

1111b - OCS is force on (for testing)

All other values are reserved.

TABLE 5-42:

PORT 2 OCS SELECT REGISTER

OCS_CFG_SEL2

(0X3C24)

Port 2 OCS Select

Bit

Name

R/W

Description

7:4

Reserved

R/W

Reserved.

3:0

OCS_SEL

R/W

This selects the source for the port power for port1

0000b - The port is disabled

0001b - OCS comes from OCS pin

0010b - OCS comes from GPIO

1111b - OCS is force on (for testing)

All other values are reserved.

TABLE 5-40:

PORT 3 POWER SELECT REGISTER (CONTINUED)

PRT_PWR_SEL3

(0X3C08)

Port 3 Power Select

Bit

Name

R/W

Description

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