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PCA9665D Datasheet(PDF) 20 Page - NXP Semiconductors |
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PCA9665D Datasheet(HTML) 20 Page - NXP Semiconductors |
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20 / 91 page  PCA9665_2 © NXP B.V. 2006. All rights reserved. Product data sheet Rev. 02 — 7 December 2006 20 of 91 NXP Semiconductors PCA9665 Fm+ parallel bus to I2C-bus controller Table 27. Master Transmitter Byte mode (MODE = 0) Status code (I2CSTA) Status of the I2C-bus and the PCA9665 Application software response Next action taken by the PCA9665 To/from I2CDAT To I2CCON STA STO SI AA MODE 08h A START condition has been transmitted Load SLA+W X X 0 X 0 SLA+W will be transmitted; ACK/NACK will be received 10h A repeated START condition has been transmitted Load SLA+W or X X 0 X 0 SLA+W will be transmitted; ACK/NACK will be received Load SLA+R X X 0 X 0 SLA+R will be transmitted; PCA9665 will be switched to Master Receiver Byte mode 18h SLA+W has been transmitted; ACK has been received Load data byte or 0 0 0 X 0 Data byte will be transmitted; ACK/NACK will be received no I2CDAT action or 1 0 0 X 0 Repeated START will be transmitted; no I2CDAT action or 0 1 0 X 0 STOP condition will be transmitted; STO flag will be reset no I2CDAT action 1 1 0 X 0 STOP condition followed by a START condition will be transmitted; STO flag will be reset 20h SLA+W has been transmitted; NACK has been received Load data byte or 0 0 0 X 0 Data byte will be transmitted; ACK/NACK will be received no I2CDAT action or 1 0 0 X 0 Repeated START will be transmitted; no I2CDAT action or 0 1 0 X 0 STOP condition will be transmitted; STO flag will be reset no I2CDAT action 1 1 0 X 0 STOP condition followed by a START condition will be transmitted; STO flag will be reset 28h Data byte in I2CDAT has been transmitted; ACK has been received Load data byte or 0 0 0 X 0 Data byte will be transmitted; ACK/NACK will be received no I2CDAT action or 1 0 0 X 0 Repeated START will be transmitted; no I2CDAT action or 0 1 0 X 0 STOP condition will be transmitted; STO flag will be reset no I2CDAT action 1 1 0 X 0 STOP condition followed by a START condition will be transmitted; STO flag will be reset |
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