WM8310GEB/V Wolfson Microelectronics, WM8310GEB/V Datasheet - Page 33

• Manufacturer Part Number: WM8310GEB/V
• Description: POWER MANAGEMENT SUBSYSTEM, 169BGA
• Manufacturer: Wolfson Microelectronics

Specifications of WM8310GEB/V

• Supply Voltage: 7V
• No. Of Step-down Dc - Dc Converters: 4
• No. Of Ldo Regulators: 11
• Digital Ic Case Style: BGA
• No. Of Pins: 169
• No. Of Regulated Outputs: 13
• Operating Temperature Range: -40°C To
• Rohs Compliant: Yes
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Pre-Production
w
LDOs to power up. If the ON sequence has not completed within 2 seconds of starting the transition,
then a Power Sequence Failure has occurred, resulting in the OFF state being forced.
The most recent ON or WAKE event can be determined by reading the bits in the “ON Source”
register, R400Eh. The most recent OFF event can be determined by reading the bits in the “OFF
Source” register, R400Fh.
The “ON Source” register is updated when a new ON event occurs. The “OFF Source” register is
updated when a new OFF event occurs. Note that some Reset conditions (see Section 24) result in
an OFF transition followed by an ON transition; these events are recorded as Reset events in the
“ON Source” register.
The ON Source and OFF Source register fields are defined in Table 2.
R16387
(4003h)
Power State
R16398
(400Eh)
ON Source
ADDRESS
11:10
BIT
15
14
15
11
10
8
7
6
CHIP_ON
CHIP_SLP
PWRSTATE_DLY
ON_TRANS
ON_GPIO
ON_SYSLO
ON_CHG
ON_WDOG_TO
ON_SW_REQ
LABEL
DEFAULT
0
0
0
0
0
0
0
0
0
Indicates whether the system is
ON or OFF.
0 = OFF
1 = ON (or SLEEP)
OFF can be commanded by
writing CHIP_ON = 0.
Note that writing CHIP_ON = 1 is
not a valid ‘ON’ event, and will not
trigger an ON transition.
Indicates whether the system is in
the SLEEP state.
0 = Not in SLEEP
1 = SLEEP
WAKE can be commanded by
writing CHIP_SLP = 0.
SLEEP can be commanded by
writing CHIP_SLP = 1.
Power State transition delay
00 = No delay
01 = No delay
10 = 1ms
11 = 10ms
Most recent ON/WAKE event type
0 = WAKE transition
1 = ON transition
Most recent ON/WAKE event type
0 = Not caused by GPIO input
1 = Caused by GPIO input
Most recent WAKE event type
0 = Not caused by SYSVDD
1 = Caused by SYSLO threshold.
Note that the SYSLO threshold
cannot trigger an ON event.
Most recent WAKE event type
0 = Not caused by Battery Charger
1 = Caused by Battery Charger
Most recent WAKE event type
0 = Not caused by Watchdog timer
1 = Caused by Watchdog timer
Most recent WAKE event type
0 = Not caused by software WAKE
1 = Caused by software WAKE
command (CHIP_SLP = 0)
PP, December 2009, Rev 3.0
DESCRIPTION
WM8310
33