Rainbow Electronics T48C862-R4 - Manual (Page 94)

94
T48C862-R4
4551B–4BMCU–02/03
A -> acknowledge, N -> no acknowledge; HB: high byte; LB: low byte, R: row address
Initialization the Serial
Interface to the EEPROM To prevent unexpected behavior of he EEPROM and its interface it is good practice to
use an initialization sequence after any reset of the circuit. This is performed by writing:
to the serial interface. If the EEPROM acknowledges this sequence it is in a defined
state. Maybe it is necessary to perform this sequence twice.
Read high byte first,
address decrement
A4 A3 A2 A1 A0 C1 C0 R/NW
Row address 1 0 1
Byte order HB(R) LB(R) HB(R-1) LB(R-1) – HB(R-n) LB(R-n)
Start "FFh" A Stop