tsl2580 ETC-unknow, tsl2580 Datasheet - Page 17

• Manufacturer Part Number: tsl2580
• Description: Light-to-digital Converter
• Manufacturer: ETC-unknow

ID Register (12h)
Constant (13h)
The LUMENOLOGY r Company
CONSTANT
PARTNO
REVNO
FIELD
FIELD
Address
Address
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.
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.
12h
12h
Bit :
Bit :
BITS
BITS
7:4
3:0
7:0
7
7
Part Number Identification: field value 1000b = TSL2580, field value 1001b = TSL2581
Revision number identification
Constant value used as the byte count for SMBus block read/write transactions. I
the byte count field in the block transaction, so this register should be ignored if an TSL2581 device is used.
6
6
PARTNO
5
5
r
Table 12. Constant Register
Table 11. ID Register
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CONSTANT
4
4
3
3
DESCRIPTION
DESCRIPTION
2
2
LIGHT-TO-DIGITAL CONVERTER
r
REVNO
1
1
TSL2580, TSL2581
2
C protocol does not use
Copyright E 2010, TAOS Inc.
0
0
TAOS098 − MARCH 2010
Reset
Reset
− −
− −
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