Datasheet

ADP8866 Data Sheet
Rev. A | Page 38 of 52
Independent Sink 9 Off Timer (OFFTIMER9)—Register 0x21
Table 54. OFFTIMER9 Bit Map
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Reserved SC9OFF
Table 55.
Bit Name Bit No. Description
N/A 7 Reserved.
SC9OFF [6:0] SC9 off time. When the SC off time is disabled, the SC remains on while enabled. When the SC off time is set to
any other value, the ISC turns off for the off time (per the following listed times) and then turns on according to
the SCON setting.
0000 = disabled
1
.
0000001 = 0.0 sec
2
.
0000010 = 0.1 sec.
0000011 = 0.2 sec.
…
1111110 = 12.5 sec.
1111111 = off
3
.
1
An independent sink remains on continuously when it is enabled and SCxOFF is 00 (disabled).
2
Setting SCxOFF to 0 seconds is not recommended if the SCFO fade-out time is also set to 0 seconds.
3
Setting SCxOFF to off causes the LED to be held off indefinitely. This is useful for setting up a blink sequence that runs once and then goes to off.
Independent Sink Current Fade (ISCF)—Register 0x22
Table 56. ISCF Bit Map
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
SCFO SCFI
Table 57.
Bit Name Bit No. Description
SCFO [7:4] Sink current fade-out time. Note that the fade time given is from full scale to zero (the actual full-scale value is
affected by the LEVEL_SET bits). Binary code fade-out times are as follows:
0000 = disabled.
0001 = 0.05 sec.
0010 = 0.10 sec.
0011 = 0.15 sec.
0100 = 0.20 sec.
0101 = 0.25 sec.
0110 = 0.30 sec.
0111 = 0.35 sec.
1000 = 0.40 sec.
1001 = 0.45 sec.
1010 = 0.50 sec.
1011 = 0.75 sec.
1100 = 1.00 sec.
1101 = 1.25 sec.
1110 = 1.50 sec.
1111 = 1.75 sec.