Intel C2550 FH8065401488912 Data Sheet
Product codes
FH8065401488912
Volume 2—Real Time Clock (RTC)—C2000 Product Family
RTC During Power-Up
Intel
®
Atom™ Processor C2000 Product Family for Microserver
Datasheet, Vol. 2 of 3
September 2014
524
Order Number: 330061-002US
26.4
RTC During Power-Up
The RTC circuitry is always powered-on to update the real time clock. It receives its
supply voltage from the connected coin cell. When the power-up sequence begins and
the other platform-board power supplies are available, the RTC unit moves to an
alternative power supply.
26.5
Clearing the Battery-Backed RTC RAM
Table 26-3. Register Bits Reset by Asserting SRTCRST_B
Register Bit
Bit(s)
Default State
1
xb
15
0b
13
0b
12
0b
8
0b
7:6
00b
5:4
00b
3
0b
0
1b
26
0b
11
0b
12:10
0b
13
0b
10
0b