WM8311GEB/V Wolfson Microelectronics, WM8311GEB/V Datasheet - Page 229

• Manufacturer Part Number: WM8311GEB/V
• Description: POWER MANAGEMENT SUBSYSTEM, 121BGA
• Manufacturer: Wolfson Microelectronics

Specifications of WM8311GEB/V

• Supply Voltage: 5.5V
• No. Of Step-down Dc - Dc Converters: 4
• No. Of Ldo Regulators: 7
• Digital Ic Case Style: BGA
• No. Of Pins: 121
• No. Of Regulated Outputs: 9
• Operating Temperature Range: -40°C To
• Rohs Compliant: Yes
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Pre-Production
REGISTER
Register 404Ch Status LED 1
REGISTER
R16461
(404Dh)
Status LED
2
w
ADDRESS
ADDRESS
15:14
BIT
BIT
3:2
1:0
9:8
5:4
3:2
1:0
LED2_SEQ_LE
LED1_DUTY_
LED2_DUTY_
LED2_MODE
LED1_DUR
LED2_DUR
LED2_SRC
CYC[1:0]
CYC[1:0]
LABEL
LABEL
N[1:0]
[1:0]
[1:0]
[1:0]
[1:0]
DEFAULT
DEFAULT
01
10
11
00
10
01
10
01 = 2 pulses
10 = 4 pulses
11 = 7 pulses
LED1 On time
(when LED1_MODE = Continuous Pulsed or Pulsed
Sequence)
00 = 1 second
01 = 250ms
10 = 125ms
11 = 62.5ms
LED1 Duty Cycle (On:Off ratio)
(when LED1_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)
LED2 Source
(Selects the LED2 function.)
00 = Off
01 = Power State Status
10 = Charger Status
11 = Manual Mode
Note - LED2 also indicates an OTP Auto Program Error
condition
LED2 Mode
(Controls LED2 in Manual Mode only.)
00 = Off
01 = Constant
10 = Continuous Pulsed
11 = Pulsed Sequence
LED2 Pulse Sequence Length
(when LED2_MODE = Pulsed Sequence)
00 = 1 pulse
01 = 2 pulses
10 = 4 pulses
11 = 7 pulses
LED2 On time
(when LED2_MODE = Continuous Pulsed or Pulsed
Sequence)
00 = 1 second
01 = 250ms
10 = 125ms
11 = 62.5ms
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)
DESCRIPTION
DESCRIPTION
PP, December 2009, Rev 3.0
REFER TO
REFER TO
WM8311
229