TUSB8043AI datasheet(29/56 Pages) TI1

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TUSB8043A

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8.5.8 Battery Charging Support Register

Figure 9. Register Offset 6h

Bit No.

Reset State

Table 13. Bit Descriptions – Battery Charging Support Register

Bit

Field

Type

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, i.e. batEn0

corresponds to downstream port 1, and batEN1 corresponds to

downstream port 2.

The default value for these bits are loaded at the de-assertion of reset

with the value of PWRCTL/BATEN[3:0].

When in I2C/SMBus mode the bits in this field may be over-written by

EEPROM contents or by an SMBus host.

8.5.9 Device Removable Configuration Register

Figure 10. Register Offset 7h

Bit No.

Reset State

Table 14. Bit Descriptions – Device Removable Configuration Register

Bit

Field

Type

Description

customRmbl

Custom Removable. This bit controls selection of port removable bits,

port used bits, and USB2_ONLY bits.

0 = rmbl[3:0], used[3:0], and USB2_ONLY[3:0] are read only and the

values are loaded from the OTP ROM

1 = rmbl[3:0], used[3:0], and USB2_ONLY[3:0] are read/write 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]

RO/RW

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, i.e. rmbl0

corresponds to downstream port 1, rmbl1 corresponds to downstream

port 2, etc.

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

the value of this filed reflects the inverted values of the OTP ROM

non_rmb[3:0] field.

8.5.10 Port Used Configuration Register

Figure 11. Register Offset 8h

Bit No.

Reset State

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