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ISD5116 Datasheet(PDF) 30 Page - Winbond |
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ISD5116 Datasheet(HTML) 30 Page - Winbond |
30 / 57 page October 2000 Page 29 2. Read digital data For a normal digital read, the Registers are loaded as follows: 1. Host executes I 2C START 2. Send Slave Address with R/W bit = “0” (Write) 3. Slave responds back with an ACK 4. Wait for SCL HIGH 5. Host sends a byte to Slave - (Command Byte = E1) 6. Slave responds with an ACK 7. Wait for SCL HIGH 8. Host sends a byte to Slave - (High Address Byte) 9. Slave responds with an ACK. 10. Wait for SCL HIGH 11. Host sends a byte to Slave - (Low Address Byte) 12. Slave responds with an ACK 13. Wait for SCL HIGH 14. Host sends repeat START 15. Host sends Slave Address with R/W bit = 1 (Reverses Data Direction) 16. Slave responds with an ACK 17. Wait for SCL HIGH 18. Slave sends a byte to Host - (First 8 bits of digital information) 19. Host responds with an ACK 20. Wait for SCL HIGH 21. Steps 18, 19 and 20 are repeated until last byte is sent and a NO ACK is returned 22. Host executes I 2C STOP A S SLAVE ADDRESS W Command Byte C9h A DATA A DATA A High Addr. Byte Low Addr. Byte DATA A DATA A P DATA N A S SLAVE ADDRESS R |
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