wm8351 Wolfson Microelectronics plc, wm8351 Datasheet - Page 194

• Manufacturer Part Number: wm8351
• Description: Wolfson Audioplus? Stereo Codec With Power Management
• Manufacturer: Wolfson Microelectronics plc

WM8351
w
R23 (17h)
RTC Time
control
Table 135 RTC GPIO Output
ADDRESS
3:0
BIT
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, June 2009, Rev 4.1
Production Data
194