REL1.1
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iWave Systems Technologies Pvt. Ltd.
RZ/G1C SBC Hardware User Guide
2.8
Other Features
2.8.1
RTC Controller with Battery Connector
The RZ/G1C SBC supports RTC Controller “PCF85263AT/AJ” for Real time clock suppor
t. This external RTC Controller
is connected to the RZ/G1C CPU through I2C3 Interface and operates at 3.3V voltage level. Also RZ/G1C SBC supports
2pin connector for backup battery/coincell connection. In SBC power off condition, RTC controller will take power
from RTC battery/coincell power and continues to keep the current time. The 2pin RTC battery connector is
physically located on top side of the SBC as shown below.
Number of Pins
- 02
Connector Part Number
- DF13-2P-1.25DSA
Mating Connector
- DF13-2S-1.25C
Mating Connector Crimp Contact - DF13-2630SCFA
Figure 10: RTC Battery Connector
Table 4: RTC Battery Connector Pin Assignment
Pin
No.
Signal Name
Signal Type/
Termination
Description
1
VBAT+
I, 3.0V Power
RTC Coin Cell Power input.
2
VBAT-
Power
Ground.