Datasheet

EVAL-ADP8860
Rev. 0 | Page 10 of 24
The backlight fading law is shown/changed using the drop-
down control BL Fading Law. This corresponds to Bit[2:1]
in Register CFGR (Address 0x04).
The backlight brightness state, when not automatically controlled
by the ambient light sensing comparator, is shown/changed
using the Brightness Level drop-down control. This corres-
ponds to Bit[4:3] in Register CFGR (Address 0x04).
VIEW/MODIFY INDIVIDUAL SINKS PARAMETERS
07988-019
Figure 19. View/Modify Individual Sinks Parameters
The controls in the view/modify individual sinks parameters
block show the current parameters programmed for the
individual sinks and allow modifications using selections
and drop-down controls.
Each individual sink has dedicated registers to program the
brightness intensity, off time, and activation state. These
controls are distributed in seven rows, one per individual sink.
The brightness level controls for Sink 1 to Sink 7 correspond to
Register ISC7 to Register ISC1 (Address 0x14 to Address 0x1A).
The MAX current checkbox for Sink 7 shows/changes the full-
scale range of the seventh individual sink (ISC7). If unchecked,
the maximum current is 30 mA. If checked, the maximum
current is 60 mA.
The ON/OFF activation selections correspond to Register
ISCC, Bit[6:0] (Address 0x10). In the software, this button is off
by default, and the respective individual sink is in the off state.
If selected, the respective individual sink is in the on state (if the
backlight is activated). The off times are shown/changed using
the drop-down control in the OFF Time column for each
individual sink. The controls correspond to the following
ADP8860 registers:
• Sink 1 off time = Bit[1:0] in Register ISCT2 (Address 0x012)
• Sink 2 off time = Bit[3:2] in Register ISCT2 (Address 0x012)
• Sink 3 off time = Bit[5:3] in Register ISCT2 (Address 0x012)
• Sink 4 off time = Bit[7:6] in Register ISCT2 (Address 0x012)
• Sink 5 off time = Bit[1:0] in Register ISCT1 (Address 0x011)
• Sink 6 off time = Bit[3:2] in Register ISCT1 (Address 0x011)
• Sink 7 off time = Bit[5:3] in Register ISCT1 (Address 0x011)
Controls acting on parameters common to all the individual sinks
are grouped on the left side of the block. These parameters are
as follows:
• The ON Time drop-down control corresponds to Bit[7:6]
in Register ISCT1 (Address 0x11).
• The Fading Law drop-down control corresponds to
Bit[1:0] in Register ISCFR (Address 0x0F).
• The Fade In drop-down control corresponds to Bit[3:0]
in Register ISCF (Address 0x13).
• The Fade Out drop-down control corresponds to Bit[7:4]
in Register ISCF (Address 0x13).
• The Synchronous Enable selection corresponds to Bit[2]
in Register MDCR (Address 0x01).