TSL2580 Ver la hoja de datos (PDF) - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS

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TSL2580

LIGHT-TO-DIGITAL CONVERTER

TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS 

TSL2580, TSL2581

LIGHT-TO-DIGITAL CONVERTER

TAOS098 − MARCH 2010

When INTR = 11, the interrupt is generated immediately following the SMBus write operation. Operation then

behaves in an SMB-Alert mode, and the software set interrupt may be cleared by an SMB-Alert cycle.

Note: Interrupts are based on the value of Channel 0 only.

Bit : 7

Address

02h

Resv

6

INTR_STOP

Table 6. Interrupt Control Register

5

4

3

2

1

INTR

PERSIST

0

Reset

00h

FIELD

Resv

INTR_STOP

INTR

PERSIST

BITS

7

6

5:4

3:0

DESCRIPTION

Reserved. Write as 0.

Stop ADC integration on interrupt. When high, ADC integration will stop once an interrupt is asserted. To

resume operation (1) de-assert ADC_EN using CONTROL register, (2) clear interrupt using COMMAND

register, and (3) re-assert ADC_EN using CONTROL register. Note: Use this bit to isolate a particular

condition when the sensor is continuously integrating.

INTR Control Select. This field determines mode of interrupt logic according to Table 7, below.

Interrupt persistence. Controls rate of interrupts to the host processor as shown in Table 8, below.

Table 7. Interrupt Control Select

INTR FIELD VALUE

00

01

10

11

READ VALUE

Interrupt output disabled

Level Interrupt

SMBAlert compliant

Test Mode: Sets interrupt and functions as mode 10

NOTE: Field value of 11 may be used to test interrupt connectivity in a system or to assist in debugging interrupt service routine software.

Table 8. Interrupt Persistence Select

PERSIST FIELD VALUE

0000

0001

0010

0011

0100

0101

0110

0111

1000

1001

1010

1011

1100

1101

1110

1111

INTERRUPT PERSIST FUNCTION

Every ADC cycle generates interrupt

Any value outside of threshold range

2 integration time periods out of range

3 integration time periods out of range

4 integration time periods out of range

5 integration time periods out of range

6 integration time periods out of range

7 integration time periods out of range

8 integration time periods out of range

9 integration time periods out of range

10 integration time periods out of range

11 integration time periods out of range

12 integration time periods out of range

13 integration time periods out of range

14 integration time periods out of range

15 integration time periods out of range

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