TSL2301

102 × 1 LINEAR OPTICAL SENSOR ARRAY

WITH ANALOGTODIGITAL CONVERTER

TAOS007 – JULY 2000

8

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Copyright

E 2000, TAOS Inc.

ABORTPixel – Abort Pixel Data Read

Encoding: 0x19: <0001_1001>

ABORTPixel is an optional command that stops a READPixel command during its execution. It also causes pixel

integration to terminate and to enter the auto-zero/reset state. Any values that were being held in the array’s

sample/hold circuits are lost.

READHold – Sample and Read Combination

Encoding: 0x12: <0001_0010>

READHold is a macro command that combines both the SAMPLEInt and READPixel commands into a single

command. It is also provided as a shortcut for advanced users.

READHoldNStart Combination

Encoding: 0x16: <0001_0110>

READHold is a macro command that combines the SAMPLEInt, READPixel, and StartInt commands into a

single command, and is provided as a shortcut for advanced users.

Register Commands

The register commands provide the user the capability of setting gain and offset corrections for each of the three

zones of pixels. a4–a0 refer to the register address as given in Table 2.

REGWrite – Write a Gain/Offset/Mode Register

Encoding: 0x40 <data>: <010a4_a3a2a1a0> <d7d6d5d4_d3d2d1d0>

REGWrite writes a value into either a gain, offset, or mode register. The 5-bit address of the register is encoded

into the command byte (the first byte). A second byte, which contains the data to be written, follows the command

byte.

REGRead – Read a Gain/Offset/Mode Register

Encoding: 0x60: <011a4_a3a2a1a0>

REGRead reads the value previously stored in a gain, offset, or mode register. The 5-bit address of the register

is encoded into the command byte. Then, following receipt of the

REGRead command, the device places the

contents of the selected register onto the SDOUT pin, LSB first. Data will be available to read 4 clocks after the

execution of the command.

Table 4. Summary of Command Types and Formats

COMMAND TYPE

FORMAT

Reset

< Command byte >

Pixel action

< Command byte >

Register read

< Command byte >

Register write

< Command byte > < Data byte>