Datasheet

TPL0102

SLIS134B –MARCH 2011– REVISED AUGUST 2011

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IVRB (Initial Value Register for Potentiometer B)

• Register Address: 01H

• Factory Programmed Value: 80H

• Type: Non-volatile Write/Read

NAME SIZE (BITS) DESCRIPTION

IVRB 8 Non-volatile register to store wiper position for potentiometer B

WRB (Wiper Resistance Register for Potentiometer B)

• Register Address: 01H

• Reset Value: Same as IVRB

• Type: Volatile Write/Read

NAME SIZE (BITS) DESCRIPTION

WRB 8 Volatile register to change wiper position for potentiometer B

ACR (Access Control Register)

• Register Address: 00H

• Reset Value: 40H

• Type: Non-volatile Write/Read

NAME SIZE (BITS) DESCRIPTION

IVRA 8 Non-volatile register to store wiper position for potentiometer A

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

ACR 8

VOL SHDN WIP 0 0 0 0 0

Default Value 0 1 0 0 0 0 0 0

NAME SIZE (BITS) DESCRIPTION

0: Non-volatile registers (IVRA, IVRB) are accessible. Value written to IVRi register is

also written to the corresponding WRi.

VOL 1

1: Only Volatile Registers (WRi) are accessible.

0: Shut-down mode is enabled. Potentiometers are in shut-down mode.

(see Figure 2)

SHDN 1

1: Shut-down mode is disabled

0: Non-volatile write operation is not in progress

WIP (Read-only

1: Non-volatile write operation is in progress (it is not possible to write to the WRi or

bit)

ACR while WIP = 1)