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