TUSB4041IPAPR datasheet(20/44 Pages) TI1

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TUSB4041I

SLLSEK3B – JULY 2015 – REVISED DECEMBER 2015

www.ti.com

8.5.11 Device Configuration Register 2

Offset = Ah

Figure 12. Device Configuration Register 2

RSVD

customBCfeatu

pwrctlPol

HiCurAcpMode

cpdEN

RSVD

autoModeEnz

RSVD

res

R-0

RW-0

RW-X

R/RW-0

RW-0

RW-X

R-0

Table 13. Device Configuration Register 2 Field Descriptions

Bit

Field

Type

Reset

Description

Reserved

RSVD

Read only, returns 0 when read.

Custom battery charging feature enable

This bit controls the ability to write to the battery charging feature configuration

controls.

0 = The HiCurAcpModeEn and cpdEN bits are read only and the values

customBCfeatures

are loaded from the OTP ROM.

1 = The HiCurAcpModeEn and cpdEN, bits are R/W and can be loaded

by EEPROM or written by SMBus from this register.

This bit may be written simultaneously with HiCurAcpModeEn and cpdEN.

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.

pwrctlPol

1 = PWRCTL polarity is active high.

When the TUSB4041I device is in I2C mode, the TUSB4041I device loads this

bit from the contents of the EEPROM.

When the TUSB4041I device is in SMBUS mode, the value may be

overwritten by an SMBus host.

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. Legacy current divider mode

HiCurAcpModeEn

R/RW

enabled.

1 = High-current divider mode enabled

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.

Enable device attach detection

This bit enables device attach detection (such as a cell-phone detect) when

auto mode is enabled.

0 = Device attach detect is disabled in auto mode.

cpdEN

RRW

1 = Device attach detect is enabled in auto mode.

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

cpdEN bit.

RSVD

Reserved

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