![Isee IGEP v2 Скачать руководство пользователя страница 44](http://html.mh-extra.com/html/isee/igep-v2/igep-v2_hardware-reference-manual_2092480044.webp)
IGEP
TM
v2
Hardware Reference Manual
ISEE 2007 S.L. All rights reserved, IGEP
™
is a registered trademar k from ISEE 2007 S.L. The followi ng is provided for informational purpos es onl y.
DOCUMENT FROM ISEE 2007 S.L. Ref: MAN-PR-IGEP0020-RCx
44
Figure 50 TP400 and TP401 location
WARNING: DM3730 use different component values on S-Video output lines.
WARNING: VIDEO signals go directly to OMAP processor. Improper use of
this connector could result on permanent damage to this processor.
5.16
RTC BACKUP BATTERY
The TPS65950 implements a backup mode, in which the backup battery keeps the RTC running.
A rechargeable backup battery can be recharged from the main battery.
This RTC feature is only available on IGEP
™
v2 revision C series
.
When the main battery is below 2.7 V or is removed, the backup battery powers the backup if
the backup battery voltage is greater than 1.8 V. The backup domain powers up the following:
• Internal 32.768
-kHz oscillator and RTC
• Hash table (20 registers of 8 bits each) and Eight GP storage registers
TPS65950 battery backup is available by using BT741 or C741.
Figure 51 IGEP
™
v2 revision C TPS65950 battery backup schematic