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ISD5100 Datasheet(PDF) 71 Page - Winbond |
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ISD5100 Datasheet(HTML) 71 Page - Winbond |
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71 / 88 page  ISD5100 – SERIES Publication Release Date: October, 2003 - 71 - Revision 0.2 Acknowledge The number of data bytes transferred between the start and stop conditions from transmitter to receiver is unlimited. Each byte of eight bits is followed by an acknowledge bit. The acknowledge bit is a HIGH level signal put on the interface bus by the transmitter during which time the master generates an extra acknowledge related clock pulse. A slave receiver which is addressed must generate an acknowledge after the reception of each byte. In addition, a master receiver must generate an acknowledge after the reception of each byte that has been clocked out of the slave transmitter. The device that acknowledges must pull down the SDA line during the acknowledge clock pulse so that the SDA line is stable LOW during the HIGH period of the acknowledge related clock pulse (set- up and hold times must be taken into consideration). A master receiver must signal an end of data to the transmitter by not generating an acknowledge on the last byte that has been clocked out of the slave. In this event, the transmitter must leave the data line HIGH to enable the master to generate a stop condition. Example of an I 2C-bus configuration using two microcontrollers SDA SCL MICRO- CONTROLLER LCD DRIVER STATIC RAM OR EEPROM GATE ARRAY ISD 5116 8 DATA OUTPUT BY TRANSMITTER DATA OUTPUT BY RECEIVER SCL FROM MASTER not acknowledge acknowledge dock pulse for acknowledgement S START condition Acknowledge on the I 2C-bus 1 2 9 |
Similar Part No. - ISD5100 |
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Similar Description - ISD5100 |
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