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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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P89C660 датащи(PDF) 26 Page - NXP Semiconductors |
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P89C660 датащи(HTML) 26 Page - NXP Semiconductors |
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26 / 89 page  Philips Semiconductors Product data P89C660/P89C662/P89C664/ P89C668 80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/1KB/2KB/8KB RAM 2002 Oct 28 26 Table 5. Master Receiver Mode STATUS STATUS OF THE I2C APPLICATION SOFTWARE RESPONSE STATUS CODE (S1STA) STATUS OF THE I2C BUS AND SIO1 HARDWARE TO/FROM S1DAT TO S1CON NEXT ACTION TAKEN BY SIO1 HARDWARE (S1STA) SIO1 HARDWARE TO/FROM S1DAT STA STO SI AA 08H A START condition has been transmitted Load SLA+R X 0 0 X SLA+R will be transmitted; ACK bit will be received 10H A repeated START diti h b Load SLA+R or X 0 0 X As above condition has been transmitted Load SLA+W X 0 0 X SLA+W will be transmitted; SIO1 will be switched to MST/TRX mode 38H Arbitration lost in NOT ACK bit No S1DAT action or 0 0 0 X I2C bus will be released; SIO1 will enter a Slave mode No S1DAT action 1 0 0 X A START condition will be transmitted when the bus becomes free 40H SLA+R has been transmitted; ACK has bi d No S1DAT action or 0 0 0 0 Data byte will be received; NOT ACK bit will be returned been received no S1DAT action 0 0 0 1 Data byte will be received; ACK bit will be returned 48H SLA+R has been t itt d NOT ACK No S1DAT action or 1 0 0 X Repeated START condition will be transmitted transmitted; NOT ACK has been received no S1DAT action or 0 1 0 X STOP condition will be transmitted; STO flag will be reset no S1DAT action 1 1 0 X STOP condition followed by a START condition will be transmitted; STO flag will be reset 50H Data byte has been received; ACK has been d Read data byte or 0 0 0 0 Data byte will be received; NOT ACK bit will be returned returned read data byte 0 0 0 1 Data byte will be received; ACK bit will be returned 58H Data byte has been i d NOT ACK h Read data byte or 1 0 0 X Repeated START condition will be transmitted received; NOT ACK has been returned read data byte or 0 1 0 X STOP condition will be transmitted; STO flag will be reset read data byte 1 1 0 X STOP condition followed by a START condition will be transmitted; STO flag will be reset |
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