Looks like you send a 64-bit pattern to get access to the clock.
Pull OE low and briefly pull CE low to reset the pattern recognition pointer.
Pull A2 low (RTC Write). For each bit, set A0 to the bit value, pull WE low, and pull CE low briefly.
After all 64 bits of the pattern are written, read the 64 bits of clock registers:
Pull A2 high (RTC Read). For each bit, pull OE low, and pull CE low briefly. Data bit appears on DQ0.
To set the clock, do the pattern recognition cycle, then write the 64 bits of clock registers:
Pull A2 low (RTC Write). For each bit, set A0 to the bit value, pull WE low, and pull CE low briefly.