TPS65230, TPS65231

Register Address Map

REGISTER

ADDRESS (HEX)

NAME

DEFUALT VALUE

DESCRIPTION

0

00

ENABLE

0000 0000

Enable control register

1

01

VADJUST

0000 0000

Voltage adjustment register

2

02

STATUS1

0000 0000

Status bit register

3

03

STATUS2

0000 0000

Status bit register

ENABLE Register (ENABLE), Address - 0X00H

DATA BIT

D7

D6

D5

D4

D3

D2

D1

D0

FIELD NAME

Not used

Not used

VCTRL

EN_BCK1

EN_BCK2

EN_BCK3

EN_USB1

EN_USB2

READ/WRITE

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

RESET

0

0

0

0

0

0

0

0

VALUE

BIT DEFINITION

Voltage control bit for BUCK2 and BUCK3

VCTRL

0 – Nominal output voltage

1 – Enable voltage adjustment level set by VADJUST register

Enable BUCK1

EN_BCK1

0 – Disabled

1 - Enabled

Enable BUCK2

EN_BCK2

0 – Disabled

1 - Enabled

Enable BUCK3

EN_BCK3

0 – Disabled

1 - Enabled

Enable USB1

EN-USB1

0 – Disabled (OFF)

1 - Enabled

Enable USB2

EN_USB2

0 – Disabled (OFF)

1 – Enabled

(1)

Enable bits EN_BCK1, EN_BCK2, and EN_BCK3 are ORed with EN_BCK1, EN_BCK2, and EN_BCK3 enable pins, respectively. To

disable a block, EN bit and EN pin must be low.

VADJUST Register (VADJUST), Address - 0X01H

DATA BIT

D7

D6

D5

D4

D3

D2

D1

D0

FIELD NAME

Not used

Not used

Not used

Not used

VBCK2[1:0]

VBCK3[1:0]

READ/WRITE

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

RESET

0

0

0

0

0

0

0

0

VALUE

BIT DEFINITION

BUCK2 voltage adjustment

00 - Nominal

VBCK2[1:0]

01 - 5% Decrease

10 - 10% Decrease

11 - 15% Decrease

BUCK3 voltage adjustment

00 - Nominal

VBCK3[1:0]

01 - 5% Decrease

10 - 10% Decrease

11 - 15% Decrease

(1)

Voltage adjustment settings for BUCK2 and BUCK3 are effective only when VCTRL pin is pulled high or VCTRL bit of ENABLE register

is set to ‘1’.

Copyright © 2009, Texas Instruments Incorporated

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Product Folder Link(s): TPS65230 TPS65231

Not Recommended for New Designs