13

Atmel LED Driver-MSL3082

Figure 5. Cascade Multiple Atmel LED Driver-MSL3082s to Control a Common Power Supply

Register Map Summary

Control the MSL3082 using the registers in the range 0x00 thru 0x59 (Table 3). Two additional registers, 0x90 and

0x91, allow access to, and programming of, the EEPROM. The power-up default values for all control registers are stored

within the on-chip EEPROM, and any of these EEPROM values may be changed through the serial interface.

REGISTER AND

ADDRESS

FUNCTION

REGISTER DATA

D7

D6

D5

D4

D3

D2

D1

D0

CONTROL

0x00

LED string

enables

STR7EN

STR6EN

STR5EN

STR4EN

STR3EN

STR2EN

STR1EN

STR0EN

0x01

UNUSED

POWERCTRL 0x02

Power

control

SLEEP

-

STRSCEN

STROCEN PWMDIRECT

FBOEN

PHADLYEN

OSCCTRL

0x03

Oscillator

frequency

-

-

-

-

-

OSCFREQ[2:0]

OTTEMP

0x04

Over-temp

threshold

OTTEMP[7:0]

SYSTEMP

0x05

System

temperature

SYSTEMP[7:0]

Table 3. Atmel LED Driver-MSL3082 Register Map

Atmel LED Driver-MSL3082

8-string, High-power, White or RGB LED Driver for TV,

Blacklighting, or Intelligent Solid-state Lighting