EMBRON Hatteland E Series - Page 113

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RTC Timer (Apollolake) - User Guide
Appendix
IND100077-195
DOC207017- rev 01 – 2018-09-24 - Created by: 6644
Page 4 of 12
Hatteland Display AS, Stokkastrandvegen 87B, N-5578 Nedre Vats, Norway
Tel: (+47) 4814 2200 - mail@hatteland-display.com - www.hatteland-display.com
User Guide RTC Timer - ApolloLake
All intellectual properties belongs to Hatteland Display AS
1 Description
APOLLOLAKE S/L motherboard is equipped with accurate external RTC chip. It can hold the time
accurately under absence of NTP time server.
The RTC timer works together with internal PCH timer on processor.
When OS is running, User APP is updating PCH time at runtime. During System boot, BIOS will copy
the timer from external RTC to internal PCH.
DOC207017- rev 01 – 2018-09-24 - Created by: 6644
Page 5 of 12
Hatteland Display AS, Stokkastrandvegen 87B, N-5578 Nedre Vats, Norway
Tel: (+47) 4814 2200 - mail@hatteland-display.com - www.hatteland-display.com
User Guide RTC Timer - ApolloLake
All intellectual properties belongs to Hatteland Display AS
Figure 1-1 RTC time update