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CAT1027ZI-28TE13 Datasheet(PDF) 11 Page - Catalyst Semiconductor |
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CAT1027ZI-28TE13 Datasheet(HTML) 11 Page - Catalyst Semiconductor |
11 / 20 page 11 CAT1026, CAT1027 Doc No. 3010, Rev. K Page Write The CAT1026 and CAT1027 write up to 16 bytes of data in a single write cycle, by using the Page Write operation. The page write operation is initiated in the same manner as the byte write operation, however instead of terminating after the initial byte is transmitted, the Master is allowed to send up to 15 additional bytes. After each byte has been transmitted, the CAT1026 and CAT1027 will respond with an acknowledge and internally increment the lower order address bits by one. The high order bits remain unchanged. If the Master transmits more than 16 bytes before sending the STOP condition, the address counter ‘wraps around,’ and previously transmitted data will be overwritten. When all 16 bytes are received, and the STOP condition has been sent by the Master, the internal programming cycle begins. At this point, all received data is written to the CAT1026 and CAT1027 in a single write cycle. BYTE ADDRESS SLAVE ADDRESS S A C K A C K DATA A C K S T O P P BUS ACTIVITY: MASTER SDA LINE S T A R T Figure 9. Byte Write Timing BUS ACTIVITY: MASTER SDA LINE DATA n+15 BYTE ADDRESS (n) A C K A C K DATA n A C K S T O P S A C K DATA n+1 A C K S T A R T P SLAVE ADDRESS Figure 10. Page Write Timing |
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