TUSB4041IPAPR datasheet(20/48 Pages) TI

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TUSB4041I

SLLSEK3E – JULY 2015 – REVISED SEPTEMBER 2017

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8.5.8 Battery Charging Support Register

Offset = 6h

Figure 9. Battery Charging Support Register

RSVD

batEn[3:0]

R-0

RW-X

Table 10. Battery Charging Support Register Field Descriptions

Bit

Field

Type

Reset

Description

7:4

RSVD

Reserved

Read only, returns 0 when read.

3:0

batEn[3:0]

Battery Charger Support. The bits in this field indicate whether the downstream port

implements the charging port features.

0 = The port is not enabled for battery charging support features

1 = The port is enabled for battery charging support features

Each bit corresponds directly to a downstream port, that is batEn0 corresponds to

downstream port 1, and batEN1 corresponds to downstream port 2.

The default value for these bits are loaded at the deassertion of reset with the value

of PWRCTL/BATEN[3:0].

When in I2C/SMBus mode the bits in this field may be overwritten by EEPROM

contents or by an SMBus host.

8.5.9 Device Removable Configuration Register

Offset = 7h

Figure 10. Device Removable Configuration Register

customRmbl

RSVD

rmbl[3:0]

RW-0

R-0

RW-X

Table 11. Device Removable Configuration Register Field Descriptions

Bit

Field

Type

Reset

Description

customRmbl

Custom removable

This bit controls the ability to write to the port removable bits.

0 = rmbl[3:0] are read only, and the values are loaded from the OTP ROM.

1 = rmbl[3:0] are R/W and can be loaded by EEPROM or written by SMBus.

This bit may be written simultaneously with rmbl[3:0].

6:4

RSVD

Reserved

Read only, returns 0 when read

3:0

rmbl[3:0]

Removable

The bits in this field indicate whether a device attached to downstream ports 4

through 1 are removable or permanently attached.

0 = The device attached to the port is not removable.

1 = The device attached to the port is removable.

Each bit corresponds directly to a downstream port n + 1, For example: rmbl0

corresponds to downstream port 1, rmbl1 corresponds to downstream port 2, and

so on.

This field is read only unless the customRmbl bit is set to 1. Otherwise, the value of

this field reflects the inverted values of the OTP ROM non_rmb[3:0] field.

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