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WM8311 Datasheet(PDF) 151 Page - Wolfson Microelectronics plc

Part # WM8311
Description  Processor Power Management Subsystem
PDF  302 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8311 Datasheet(HTML) 151 Page - Wolfson Microelectronics plc

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Pre-Production
WM8311
w
PP, May 2012, Rev 3.1
151
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
3:2
LED2_DUR
[1:0]
01
LED2 On time
(when LED2_MODE = Continuous
Pulsed or Pulsed Sequence)
00 = 1 second
01 = 250ms
10 = 125ms
11 = 62.5ms
1:0
LED2_DUTY_C
YC [1:0]
10
LED2 Duty Cycle (On:Off ratio)
(when LED2_MODE = Continuous
Pulsed or Pulsed Sequence)
00 = 1:1 (50% on)
01 = 1:2:(33.3% on)
10 = 1:3 (25% on)
11 = 1:7 (12.5% on)
Table 88 System Status LED Outputs - Manual Mode Control
22.3 LED DRIVER CONNECTIONS
The recommended connection for System Status LEDs is illustrated in Figure 35. The LED outputs
are referenced to the SYSVDD power domain. A series resistor may be required, depending on the
LED characteristics and the SYSVDD voltage.
Figure 35 System Status LED Connections



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