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FM31278/276/274/272 - 5V I2C Companion

Start Address By Master Start AddressStopNoAcknowledge S Slave Address A Address MSB A Address LSB A S Slave Address 1 A Data Byte 1 P
By FM3127x Acknowledge Data

Figure 16. Selective (Random) Memory Read

By Master Start Address & Data Stop S Slave Address A 000 Address A Data Byte A P By FM3127x Acknowledge

Figure 17. Byte Register Write Addressing F-RAM Array in the FM3127x Family Table 4. Two-Byte Memory Address

x A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 x x x A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 x x x x x A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 x x x x x x x A8 A7 A6 A5 A4 A3 A2 A1 A0