Intersil x1288 RTC smbus programing

Oct 26, 2005 0 Replies

Having difficulty understanding writing to the WEL and RWEL bits in the status register sequence.



START > then set 0x3F > data byte (WEL, RWEL) > STOP



Then one is supposed to write to the other registers by using the address's 0xDF and 0xAF, followed by the register word address folowed by the data.



Where is the address (volatile SRAM) to be used when setting the Status Register, or is just the 0x3F is all that is necessary?



Thanks.



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