Digital blocks

LED2472G

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DocID024620 Rev 3

managed as described in Table 8 where a description is provided for each bit. The default

value of the configuration register (when the device is switched ON or after a reset) is all bits

set to “0”. To change anything in the configuration register, a 24-bit digital word must be sent

(CFG-0 represents the LSB, CFG-23 the MSB).

Figure 10. Configuration register

Table 8. Configuration register

BIT

Definition

Attribute

read/write

Configuration register function description

Default

CFG-0

RED

current range

R/W

”0” low current range

“1” high current range

0

CFG-1

GREEN current

range

R/W

”0” low current range

“1” high current range

0

CFG-2

BLUE

current range

R/W

”0” low current range

“1” high current range

0

CFG-3

RED

voltage det. thr.

R/W

“0” LED short-circuit detection threshold 2 V

“1” LED short-circuit detection threshold 3 V

0

CFG-4

GREEN

voltage det. thr.

R/W

“0” LED short-circuit detection threshold 2 V

“1”LE D short-circuit detection threshold 3 V

0

CFG-5

BLUE

voltage det. thr.

R/W

“0” LED short-circuit detection threshold 2 V

“1” LED short-circuit detection threshold 3 V

0

CFG-6

Auto OFF

R/W

“0” device always ON

”1” auto power shutdown active (Auto OFF)

0

CFG-7

SDO delay

R/W

“0” SDO half clock delay disabled

“1” SDO half clock delay enabled

0

CFG-8

Gradual output

delay

R/W

“0” gradual outputs delay is applied

”1” all channels switch ON and OFF

simultaneously

0