TS-7600 I2C
From embeddedTS Manuals
These pins provide a standard two-wire interface. This bus also connects to an RTC on the SBC. For more information, see the CPU manual.
This functionality is used to read and write the RTC from tshwctl.c: ftp://ftp.embeddedarm.com/ts-arm-sbc/ts-7600-linux/sources/tshwctl.c