TUSB320 datasheet(15/35 Pages) TI1

15 / 35 page

TUSB320, TUSB320I

www.ti.com

SLLSEN9C – MAY 2015 – REVISED SEPTEMBER 2016

Product Folder Links: TUSB320 TUSB320I

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7.5 Register Maps

Table 6. CSR Registers

ACCESS

TAG

NAME

MEANING

Read

The field may be read by software.

Write

The field may be written by software.

Set

The field may be set by a write of one. Writes of zeros to the field have no effect.

Clear

The field may be cleared by a write of one. Writes of zeros to the field have no effect.

Update

Hardware may autonomously update this field.

No Access

Not accessible or not applicable.

Table 7. CSR Registers Bit Address and Description

ADDRESS

BIT(S)

BIT NAME

DESCRIPTION

ACCESS

0x00 – 0x07

7:0

DEVICE_ID

For the TUSB320 device these fields return a string of ASCII

characters returning TUSB320

Addresses 0x07 - 0x00 = {0x00 0x54 0x55 0x53 0x42 0x33

0x32 0x30}

0x08

7:6

CURRENT_MODE_ADVERTISE

These bits are programmed by the application to raise the

current advertisement from default.

00 – Default (500 mA / 900 mA) initial value at startup

01 – Mid (1.5 A)

10 – High (3 A)

11 – Reserved

5:4

CURRENT_MODE_DETECT

These bits are set when a UFP determines the Type-C

Current mode.

00 – Default (value at start up)

01 – Medium

10 – Charge through accessory – 500 mA

11 – High

3:1

ACCESSORY_CONNECTED

These bits are read by the application to determine if an

accessory was attached.

000 – No accessory attached (default)

001 – Reserved

010 – Reserved

011 – Reserved

100 – Audio accessory

101 – Audio charged thru accessory

110 – Debug accessory

111 – Reserved

ACTIVE_CABLE_DETECTION

This flag indicates that an active cable has been plugged

into the Type-C connector. When this field is set, an active

cable is detected.

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