WM8350GEB/V Wolfson Microelectronics, WM8350GEB/V Datasheet - Page 197
WM8350GEB/V
Manufacturer Part Number
WM8350GEB/V
Description
Audio CODECs Audio CODEC plus pwr management
Manufacturer
Wolfson Microelectronics
Datasheet
1.WM8350GEBV.pdf
(339 pages)
Specifications of WM8350GEB/V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 197 of 339
- Download datasheet (3Mb)
Production Data
22.4 RTC GPIO OUTPUT
w
It is possible to configure GPIO6 as an RTC output, as described in Section 20. This output is a
square wave that is derived from the trimmed RTC counter. The frequency can be set to values
between 1Hz and 16.384kHz, as described in Table 135.
Note that, when RTC_TRIM is used to calibrate the crystal oscillator, the nominal 50% duty ratio of
this output may deviate by up to 8 clock periods of the 32.768kHz oscillator on the occasions when
the RTC Seconds Counter is increased (ie. once per second).
R23 (17h)
RTC Time
control
Table 135 RTC GPIO Output
ADDRESS
BIT
3:0
RTC_DSW [3:0]
LABEL
DEFAULT
0000
Divided Square wave select.
0000 = disabled
0001 = 1Hz
0010 = 2Hz
…
1011 = 1024Hz
1100 = 2048Hz
1101 = 4096Hz
1110 = 8192Hz
1111 = 16384Hz
Note: due to trim settings for crystal
intolerances a single square wave period
during seconds rollover may be decrease
its on time period or increase its off time
period by up to 8 32kHz periods.
DESCRIPTION
PD, March 2010, Rev 4.2
WM8350
197
Related parts for WM8350GEB/V
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Wolfson Audioplus? Stereo Codec With Power Management
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Manufacturer:
Wolfson Microelectronics
Datasheet: