ISL6884 Datasheet, PDF (8/13 Pages) Intersil Corporation – CCFL Brightness Controller

ISL6884
Register Description Table
Register Descriptions:
NOTES:
1. sb denotes sign bit for 2’s compliment numbers.
2. The second row shows the register’s default value loaded at Power On Reset.
TABLE 1. REGISTER DESCRIPTION TABLE (READ/WRITE REGISTERS)
WORD NAME
DESCRIPTION
BYTE
ADDRESS MSB LABEL BIT 6 LABEL BIT 5 LABEL BIT 4 LABEL BIT 3 LABEL BIT 2 LABEL BIT 1 LABEL LSB LABEL
POR
POR VALUE POR VALUE POR VALUE POR VALUE POR VALUE POR VALUE POR VALUE POR VALUE
BRT_M Brightness Magnitude Setting
0x00
b7
b6
b5
b4
b3
b2
b1
b0
POR
0
0
1
1
1
1
1
1
brt_os1 Brightness Offset for Light Sensor 1. Note: Value is stored as 2’s complement number
0x01
sb
b4
b3
b2
b1
b0
POR
0
0
0
0
0
0
0
0
brt_os2 Brightness Offset for Light Sensor 2. Note: Value is stored as 2’s complement number.
0x02
sb
b4
b3
b2
b1
b0
POR
0
0
0
0
0
0
0
0
brt_os3 Brightness Offset for Light Sensor 3. Note: Value is stored as 2’s complement number
0x03
sb
b4
b3
b2
b1
b0
POR
0
0
0
0
0
0
0
0
brt_os4 Brightness Offset for Light Sensor 4. Note: Value is stored as 2’s complement number.
0x04
sb
b4
b3
b2
b1
b0
POR
0
0
0
0
0
0
0
0
brt_os5 Brightness Offset for Light Sensor 5. Note: Value is stored as 2’s complement number
0x05
sb
b4
b3
b2
b1
b0
POR
0
0
0
0
0
0
0
0
brt_os6 Brightness Offset for Light Sensor 6. Note: Value is stored as 2’s complement number.
0x06
sb
b4
b3
b2
b1
b0
POR
0
0
0
0
0
0
0
0
brt_os7 Brightness Offset for Light Sensor 7. Note: Value is stored as 2’s complement number.
0x07
sb
b4
b3
b2
b1
b0
POR
0
0
0
0
0
0
0
0
brt_os8 Brightness Offset for Light Sensor 8. Note: Value is stored as 2’s complement number.
0x08
sb
b4
b3
b2
b1
b0
POR
0
0
0
0
0
0
0
0
mstr_en Master Enable, This signal is AND’ed with the en pin to create the enable for the PWM dimming output.
0x2a
mstr_en
POR
0
0
0
0
0
0
0
0
ch_en
Individual Channel Enables for each DPWM output.
0x2b
b7
b6
b5
b4
b3
b2
b1
b0
POR
0
0
0
0
0
0
0
0
flt_tout Fault Timer Time Out Setting.
8
FN9265.0
March 9, 2006