TSL2580, TSL2581

LIGHT-TO-DIGITAL CONVERTER

TAOS098 − MARCH 2010

13

The LUMENOLOGY

r Company

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Copyright

E 2010, TAOS Inc.

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Control Register (00h)

The CONTROL register primarily used to power the TSL258x device up and down as shown in Table 4.

Table 4. Control Register

6

75

4

POWER

2

31

0

Resv

Resv

Resv

ADC_VALID

Resv

ADC_EN

ADC_INTR

Resv

Address

00h

Reset

00h

Bit :

FIELD

BIT

DESCRIPTION

Resv

7:6

Reserved. Write as 0.

ADC_INTR

5

ADC Interrupt. Read only. Indicates that the device is asserting an interrupt.

ADC_VALID

4

ADC Valid. Read only. Indicates that the ADC channel has completed an integration cycle.

Resv

3

Reserved. Write as 0.

Resv

2

Reserved. Write as 0.

ADC_EN

1

ADC Enable. This field enables the two ADC channels to begin integration. Writing a 1 activates the ADC

channels, and writing a 0 disables the ADCs.

POWER

0

Power On. Writing a 1 powers on the device, and writing a 0 turns it off.

NOTE: ADC_EN and POWER must be asserted before the ADC changes will operate correctly. After POWER is asserted, a 2-ms delay is

required before asserting ADC_EN.

NOTE: The TSL258x device registers should be configured before ADC_EN is asserted.