Datasheet

18 Atmel LED Driver-MSL3162
REGISTER ADDRESS FUNCTION
REGISTER DATA
D7 D6 D5 D4 D3 D2 D1 D0
GSCMAX
0x25
Max osc. cycles
per GSC pulse
GSCMAX[7:0]
0x26 GSCMAX[15:8]
PHIMIN
0x27
Min GSC pulses
over PHI period
PHIMIN[7:0]
0x28 - - - - PHIMIN[15:8]
HPSCR 0x29 GSC divider - - - - HPSCR[3:0]
FRATE 0x2A
PHI freq.
multiplier
- - - FRATE[4:0]
GINT 0x2B Global intensity - - GINT[6:0]
ISTR0 0x30 LED string
6-bit individual
analog current
settings
- - ISTR0[5:0]
to - - to
ISTR15 0x3F - - ISTR15[5:0]
PHDLY0 0x40
LED string 8-bit
individual PWM
phase settings
PHDLY0[7:0]
to to
PHDLY15 0x4F PHDLY15[7:0]
PWM0 0x50
LED string 8-bit
individual PWM
intensity settings
PWM0[7:0]
to to
PWM15 0x5F PWM15[7:0]
Do not access address range 0x60 to 0x8F
E2ADDR 0x90 User EEPROM
read/write
access
- E2ADDR[6:0]
E2CTRLSTA 0x91 E2BUSY BLDACT E2ERR SLVATCNT[1:0] RWCTRL[1:0]
Table 4. Atmel LED Driver-MSL3162 Register Map
- Value written is stored and can be read back, but is not used internally.
* These bits must remain set to the indicated state.
REGISTER NAME
AND ADDRESS
POWER-UP CONDITION
REGISTER DATA
D7 D6 D5 D4 D3 D2 D1 D0
0x00 CONTROL0 LED strings STR0 to STR7 are disabled 1 1 1 1 1 1 1 1
0x01 CONTROL1 LED strings STR8 to STR15 are disabled 1 1 1 1 1 1 1 1
0x02 POWERCTRL Sleep mode 1 1 1 1 0 1 1 1
0x04 FLTMASK0 Fault detection for LED strings STR0 to STR7 is disabled 1 1 1 1 1 1 1 1
0x05 FLTMASK1 Fault detection for LED strings STR8 to STR15 is disabled 1 1 1 1 1 1 1 1
0x0A
to
0x0D
STRFB0
STRFB1
STRFB2
STRFB3
LED strings STR0 to STR7 are not monitored by the voltage
optimizers FBO1, FBO2, FBO3
1 1 1 1 1 1 1 1
0x10 FBOCTRL0
Current sink error conrmation delay is 4µs
FBO power supply correction delay is 2ms
Efciency Optimizer recalibration delay is 1s
Efciency Optimizer correction steps is 2
0 0 0 0 0 0 0 0
0x11 FBOCTRL1 Auto calibration is disabled 0 0 0 0 0 0 0 0
0x18 OSCCTRL f
OSC
is 20MHz 0 0 0 0 0 1 0 0
0x1A
IGSCGEN f
GSC
= f
OSC
0 0 0 0 0 0 0 0
0x1B 0 0 0 0 0 0 0 0
0x1C
IPHIGEN f
PHI
= f
OSC
/ 8
0 0 0 0 0 0 0 0
0x1D 0 0 0 0 0 0 0 0
Table 5. Atmel LED Driver-MSL3162 Register Power-up Defaults