USB3503 datasheet(29/73 Pages) MICROCHIP

29 / 73 page

 2011-2015 Microchip Technology Inc.

DS00001584B-page 29

USB3503

5.3.28

Default = 0x00h

5.3.29

Default=0x32h - Corresponds to OCS_N/PRT_PWR pins & pausing to connect until write from I2C

Bit Number

Bit Name

Description

7:4

Reserved

Reserved. {Note: Software must never write a ‘1’ to these bits}

OCS[3]

When SP_ILOCK.OcsPinSel = 1

OCS_N device pin controls over current condition reporting.

When SP_ILOCK.OcsPinSel = 0

Optional control from SOC on indicating external current monitor indicating an

over-current condition on port 3 for HUB status reporting to USB host. Also

resets corresponding PRTPWR status register bit. Not required for an

embedded application.

0 = No Over Current Condition

1 = Over Current Condition

2:1

OCS[2:1]

Optional control from SOC on indicating external current monitor indicating an

over-current condition on the specified port for HUB status reporting to USB

host. Also resets corresponding PRTPWR status register bit. Not required for

an embedded application.

0 = No Over Current Condition

1 = Over Current Condition

Reserved

Reserved.

Bit Number

Bit Name

Description

7:6

Reserved

OcsPinSel

1= OCS device pin will assume role as an active low Over Current Sense input

0= OCS device pin disabled, register control established

PrtPwrPinSel

1=PRTPWR device pin will assume role as an active high Port Power Switch

Control output

0=PRTPWR device pin disabled, register control established

3:2

Reserved

connect_n

The SOC can utilize this bit to control when the hub attempts to connect to the

upstream host.

1 = Device will remain in Hub Mode.Connect Stage indefinitely until bit is

cleared by the SOC.

0 = Device will transition to the Hub Mode.Communication Stage after this bit

is asserted low by default or through a serial port write.

USB3503 数据表(PDF) 29 Page - Microchip Technology

USB3503 数据表(HTML) 29 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73

数据表下载

链接网址

USB3503 数据表(PDF) 29 Page - Microchip Technology

USB3503 数据表(HTML) 29 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73

数据表 下载

链接网址

数据表下载