IDT1338B-31
REAL-TIME CLOCK WITH BATTERY BACKED NON-VOLATILE RAM
RTC
then begins to transmit data starting with the register
address pointed to by the register pointer. If the register
pointer is not written to before the initiation of a read mode
the first address that is read is the last one stored in the
register pointer. The address pointer is incremented after
each byte is transferred. The IDT1338B-31 must receive a
“not acknowledge” to end a read.
Data Write – Slave Receiver Mode
Data Read (from current Pointer location) – Slave Transmitter Mode
Data Read (Write Pointer, then Read) – Slave Receive and Transmit
IDT™ REAL-TIME CLOCK WITH BATTERY BACKED NON-VOLATILE RAM 10
IDT1338B-31 REV A 112309
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
