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

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Fabricante

TSL2580

LIGHT-TO-DIGITAL CONVERTER

TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS 

TSL2580, TSL2581

LIGHT-TO-DIGITAL CONVERTER

TAOS098 − MARCH 2010

ID Register (12h)

The ID register provides the value for both the part number and silicon revision number for that part number.

It is a read-only register whose value never changes.

Bit : 7

Address

12h

FIELD

PARTNO

REVNO

BITS

7:4

3:0

Table 11. ID Register

6

5

4

3

2

1

0

PARTNO

REVNO

DESCRIPTION

Part Number Identification: field value 1000b = TSL2580, field value 1001b = TSL2581

Revision number identification

Reset

−−

Constant (13h)

The CONSTANT register provides a means to facilitate SMBus block transfers that is used as the Byte Count

in the SMBus protocol. For example, all four ADC Channel Data Registers can be read in a single SMBus block

transfer if an SMBus Block Read is initiate at address 13h. This register defaults to the constant 4, but may be

set to other values depending upon the end application. For example, if manual integration is employed and

the register is set to 5, then all four ADC Channel Data Registers and the Manual Integration Timer Register

can be read in a single SMBus read block transaction.

Bit : 7

Address

12h

FIELD

CONSTANT

BITS

7:0

Table 12. Constant Register

6

5

4

3

2

1

0

CONSTANT

Reset

−−

DESCRIPTION

Constant value used as the byte count for SMBus block read/write transactions. I2C protocol does not use

the byte count field in the block transaction, so this register should be ignored if an TSL2581 device is used.

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Copyright E 2010, TAOS Inc.

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