TUSB8042AI datasheet(31/64 Pages) TI2

31 / 64 page

8.11 Device Configuration Register 2

Figure 8-10. Register Offset Ah

Bit No.

Reset State

Table 8-11. Bit Descriptions – Device Configuration Register 2

Bit

Field

Type

Description

Reserved

Reserved. Read-only, returns 0 when read.

customBCfeatures

Custom Battery Charging Feature Enable. This bit controls the ability to

write to the battery charging feature configuration controls.

0 = The HiCurAcpModeEn is read only and the values are loaded from

the OTP ROM.

1 = The HiCurAcpModeEn bit is read/write and can be loaded by

EEPROM or written by SMBus.

This bit can be written simultaneously with HiCurAcpModeEn.

pwrctlPol

Power enable polarity. This bit is loaded at the deassertion of reset with

the value of the PWRCTL_POL pin.

0 = PWRCTL polarity is active low

1 = PWRCTL polarity is active high

When the TUSB8042A is in I2C mode, the TUSB8042A loads this bit

from the contents of the EEPROM.

When the TUSB8042A is in SMBUS mode, the value can be

overwritten by an SMBus host.

HiCurAcpModeEn

RO/RW

High-current ACP mode enable. This bit enables the high-current tablet

charging mode when the automatic battery charging mode is enabled

for downstream ports.

0 = High current divider mode disabled . High current is ACP2(default)

1 = High current divider mode enabled. High current mode is ACP3

This bit is read only unless the customBCfeatures bit is set to 1. If

customBCfeatures is 0, the value of this bit reflects the value of the

OTP ROM HiCurAcpModeEn bit.

3:2

Reserved

Reserved. These registers are unused and returns whatever value was

written.

autoModeEnz

Automatic Mode Enable. This bit is loaded at the deassertion of reset

with the value of the AUTOENz/HS_SUSPEND pin.

The automatic mode only applies to downstream ports with battery

charging enabled when the upstream port is not connected. Under

these conditions:

0 = Automatic mode battery charging features are enabled.

1 = Automatic mode is disabled; only Battery Charging DCP and CDP

mode is supported.

NOTE: When the upstream port is connected, Battery Charging CDP

mode is supported on all ports that are enabled for battery charging

support regardless of the value of this bit.

RSVD

Reserved. Read only, returns 0 when read.

www.ti.com

TUSB8042A

SLLSF93A – JUNE 2019 – REVISED JANUARY 2025

Submit Document Feedback

Product Folder Links: TUSB8042A

TUSB8042AI Folha de dados(PDF) 31 Page - Texas Instruments

TUSB8042AI Folha de dados(HTML) 31 Page - Texas Instruments

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

Folha de dados Download

Ligação URL