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SC668
Register Map (continued)
Bank #1 Backlight Register (02h)
This register is used to set the current for the backlight
LEDs in bank #1 and to enable the lighting effect feature
for bank #1. These backlights can be turned off using the
backlight enable bits of registers 00h and 01h. Writing the
0mA value into this register will also turn off the back-
IB1_4 through IB1_0 [Bits D4:D0]
These bits are used to set the current for the backlight
LEDs in bank #1. All bank #1 enabled current sinks will sink
the same current as shown in Table 2.
Table 2 — Bank #1 Backlight Current
lights, but only if the blink and breathe effects are
disabled.
IB1_4
IB1_3 IB1_2
IB1_1
IB1_0
Backlight
Current (mA)
B1FEN Bit D5
This bit works in conjunction with the B1BEN bit of register
06h to set a lighting effect for bank #1. Figure 20 shows
the lighting effects which are enabled by the combination
of B1FEN and B1BEN. When fade is enabled, fading will
occur in bank #1 each time the bank #1 current is changed,
enabled, or disabled. Blink and breathe functions run in a
continuous loop when they are enabled.
B1BEN = 0
B1FEN = 1
Fade
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0.05
0.1
0.2
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
B1BEN = 1
B1FEN = 0
Blink
Bank #1
No Light Effect
B1BEN = 0
B1FEN = 0
0
0
1
1
1
1
1
1
0
1
6
7
1
1
0
0
0
0
0
0
0
1
8
9
Breathe
B1BEN = 1
B1FEN = 1
Figure 20 — Bank #1 Lighting Effect
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
1
1
1
1
0
0
0
0
1
1
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
10
11
12
13
14
15
16
17
18
19
20
21
23
25
28
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