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AS3658F-BCTP Datasheet(PDF) 142 Page - ams AG

Part # AS3658F-BCTP
Description  Power and Audio Management Unit for Portable Devices
PDF  158 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3658F-BCTP Datasheet(HTML) 142 Page - ams AG

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www.austriamicrosystems.com
Revision 1v13
141 - 157
AS3658
Data Sheet Confidential - Deta il ed Descri ption - System Functi ons
The RTC module includes an alarm function. When the content of the RTC 1…4 registers equals the content of the
RTC Alarm 1…4 registers bit RTCAlarm will be set in the Interrupt 1 register. Furthermore the RTC module can
generate an interrupt every second (RTC1Sec will be set) and every minute (RTC1min will be set every time the 6-bit
second counter is reset to 0). For further details on interrupt generation please refer to Interrupt Controller on page
124.
To avoid ambiguous behavior during write access to the RTC Alarm 1…4 registers any write access to the RTC Alarm
1 register will disable the alarm function; any subsequent write access to the RTC Alarm 4 will enable the alarm
function again.
Table 172. RTC Alarm second Register
Addr:68
RTC AlarmSecond
These bits set the RTC Alarm Seconds
register is reset at power-on-reset only
Bit
Bit Name
Default
Access
Description
Table 173. RTC Alarm minute1 Register
Addr:69
RTC AlarmMinute1
These bits set the RTC Alarm Minute1
register is reset at power-on-reset only
Bit
Bit Name
Default
Access
Description
Table 174. RTC Alarm minute2 Register
Addr:70
RTC AlarmMinute2
These bits set the RTC Alarm Minute2
register is reset at power-on-reset only
Bit
Bit Name
Default
Access
Description
Table 175. RTC Alarm minute3Register
Addr:71
RTC AlarmMinute3
These bits set the RTC Alarm Minute3
register is reset at power-on-reset only
Bit
Bit Name
Default
Access
Description
5:0
RTCAlarmSecond
3Fh
R/W
Bits 5…0 of 6-bit RTC second alarm value
7:0
RTCAlarmMinute1
FFh
Bits 7:0 of the 24-bit RTC minute alarm value
7:0
RTCAlarmMinute2
FFh
Bits 15:8 of the 24-bit RTC minute alarm value
7:0
RTCAlarmMinute3
FFh
Bits 23:16 of the 24-bit RTC minute alarm value



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