WM8310GEB/V Wolfson Microelectronics, WM8310GEB/V Datasheet - Page 126

• 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

WM8310
w
R16416
(4020h)
RTC Write
Counter
R16417
(4021h)
RTC Time 1
R16418
(4022h)
RTC Time 2
R16419
(4023h)
RTC Alarm 1
R16420
(4024h)
RTC Alarm 2
R16421
(4025h)
RTC Control
R16422
(4026h)
RTC Trim
Table 70 Real Time Clock (RTC) Control
ADDRESS
15:0
15:0
15:0
15:0
15:0
BIT
9:0
15
14
10
RTC_WR_CNT
RTC_TIME
[31:16]
RTC_TIME [15:0]
RTC_ALM [31:16]
RTC_ALM [15:0]
RTC_VALID
RTC_SYNC_BUS
Y
RTC_ALM_ENA
RTC_TRIM
LABEL
DEFAULT
0000h
0000h
0000h
0000h
0000h
000h
0
0
0
RTC Write Counter.
This random number is updated on every
write to the RTC_TIME registers.
RTC Seconds counter (MSW)
RTC_TIME increments by 1 every
second. This is the 16 MSBs.
RTC Seconds counter (LSW)
RTC_TIME increments by 1 every
second. This is the 16 LSBs.
RTC Alarm time (MSW)
16 MSBs of RTC_ALM
RTC Alarm time (LSW)
16 LSBs of RTC_ALM
RTC Valid status
0 = RTC_TIME has not been set since
Power On Reset
1 = RTC_TIME has been written to since
Power On Reset
RTC Busy status
0 = Normal
1 = Busy
The RTC registers should not be written
to when RTC_SYNC_BUSY = 1.
RTC Alarm Enable
0 = Disabled
1 = Enabled
RTC frequency trim. Value is a 10bit
fixed point <4,6> 2’s complement
number. MSB Scaling = -8Hz.
The register indicates the error (in Hz)
with respect to the ideal 32768Hz) of the
input crystal frequency.
Protected by user key
PP, December 2009, Rev 3.0
DESCRIPTION
Pre-Production
126