WM8351GEB/V Wolfson Microelectronics, WM8351GEB/V Datasheet - Page 195

• Manufacturer Part Number: WM8351GEB/V
• Description: Audio CODECs Audio CODEC plus pwr management
• Manufacturer: Wolfson Microelectronics

Specifications of WM8351GEB/V

• Number Of Adc Inputs: 2
• Number Of Dac Outputs: 2
• Conversion Rate: 48 KSPS
• Interface Type: Serial (2-Wire, 3-Wire, 4-Wire)
• Resolution: 12 bit
• Operating Supply Voltage: 3.7 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: BGA
• Minimum Operating Temperature: - 25 C
• Number Of Channels: 2 ADC/2 DAC
• Supply Current: 260 uA
• Thd Plus Noise: - 83 dB
• Audio Codec Type: Stereo
• No. Of Adcs: 2
• No. Of Dacs: 2
• No. Of Input Channels: 8
• No. Of Output Channels: 6
• Adc / Dac Resolution: 24bit
• Adcs / Dacs Signal To Noise Ratio: 95dB
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Production Data
22.5 RTC INTERRUPTS
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The RTC has its own first-level interrupt, RTC_INT (see Section 24). This comprises three second-
level interrupts which indicate periodic events or RTC Alarm conditions.
The RTC raises an RTC_SEC_EINT interrupt on every 1 second rollover. An additional periodic
interrupt, RTC_PER_EINT, is configurable with a frequency determined by the RTC_PINT field, as
defined in Table 137. The RTC_ALM_EINT interrupt is triggered by the RTC Alarm function, as
described in Section 22.2.4.
These interrupts can be individually masked by setting the applicable mask bit(s) as described in
Table 136.
R25 (19h)
Interrupt Status
1
R33 (21h)
Interrupt Status
1 Mask
Table 136 RTC Interrupts
R23 (17h)
RTC Time
control
Table 137 Configuring RTC Periodic Interrupts
ADDRESS
ADDRESS
BIT
7:5
BIT
6:4
7
6
5
RTC_PER_EINT
RTC_SEC_EINT
RTC_ALM_EINT
“IM_” + name of respective
bit in R25
RTC_PINT
[2:0]
LABEL
LABEL
DEFAULT
010
Selects frequency of periodic interrupt output
pulse (32kHz period duration) as shown below.
When set time status is high, the periodic
output is disabled.
000 = disabled
001 = 1 sec
010 = 1 min
011 = 1 hour
100 = 1 day
101 = 1 month
11x = disabled
RTC periodic interrupt.
(Rising Edge triggered)
Note: This bit is cleared once read.
RTC 1s rollover complete (1Hz tick).
(Rising Edge triggered)
Note: This bit is cleared once read.
RTC alarm signalled.
(Rising Edge triggered)
Note: This bit is cleared once read.
Each bit in R33 enables or masks the
corresponding bit in R25. The default
value for these bits is 0 (unmasked).
DESCRIPTION
DESCRIPTION
PD, March 2010, Rev 4.2
WM8351
195