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P87C552 Datasheet(PDF) 45 Page - NXP Semiconductors |
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P87C552 Datasheet(HTML) 45 Page - NXP Semiconductors |
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45 / 74 page  Philips Semiconductors Preliminary specification P87C552 80C51 8-bit microcontroller 8K/256 OTP, 8 channel 10 bit A/D, I2C, PWM, capture/compare, high I/O, low voltage (2.7V–5.5V), low power 1999 Mar 30 45 Table 8. Slave Receiver Mode STATUS STATUS OF THE 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 60H Own SLA+W has been received; ACK hb d No S1DAT action or X 0 0 0 Data byte will be received and NOT ACK will be returned has been returned no S1DAT action X 0 0 1 Data byte will be received and ACK will be returned 68H Arbitration lost in SLA+R/W as master; Own SLA+W has b i d ACK No S1DAT action or X 0 0 0 Data byte will be received and NOT ACK will be returned been received, ACK returned no S1DAT action X 0 0 1 Data byte will be received and ACK will be returned 70H General call address (00H) has been received; ACK has No S1DAT action or X 0 0 0 Data byte will be received and NOT ACK will be returned received ACK has been returned no S1DAT action X 0 0 1 Data byte will be received and ACK will be returned 78H Arbitration lost in SLA+R/W as master; General call address has been received No S1DAT action or X 0 0 0 Data byte will be received and NOT ACK will be returned has been received, ACK has been returned no S1DAT action X 0 0 1 Data byte will be received and ACK will be returned 80H Previously addressed with own SLV address; DATA has b i d ACK Read data byte or X 0 0 0 Data byte will be received and NOT ACK will be returned been received; ACK has been returned read data byte X 0 0 1 Data byte will be received and ACK will be returned 88H Previously addressed with own SLA; DATA bh b Read data byte or 0 0 0 0 Switched to not addressed SLV mode; no recognition of own SLA or General call address byte has been received; NOT ACK has been returned read data byte or 0 0 0 1 Switched to not addressed SLV mode; Own SLA will be recognized; General call address will be recognized if S1ADR.0 = logic 1 read data byte or 1 0 0 0 Switched to not addressed SLV mode; no recognition of own SLA or General call address. A START condition will be transmitted when the bus becomes free read data byte 1 0 0 1 Switched to not addressed SLV mode; Own SLA will be recognized; General call address will be recognized if S1ADR.0 = logic 1. A START condition will be transmitted when the bus becomes free. 90H Previously addressed with General Call; DATA byte has been i d ACK h Read data byte or X 0 0 0 Data byte will be received and NOT ACK will be returned received; ACK has been returned read data byte X 0 0 1 Data byte will be received and ACK will be returned 98H Previously addressed with General Call; DATA b h b Read data byte or 0 0 0 0 Switched to not addressed SLV mode; no recognition of own SLA or General call address DATA byte has been received; NOT ACK has been returned read data byte or 0 0 0 1 Switched to not addressed SLV mode; Own SLA will be recognized; General call address will be recognized if S1ADR.0 = logic 1 read data byte or 1 0 0 0 Switched to not addressed SLV mode; no recognition of own SLA or General call address. A START condition will be transmitted when the bus becomes free read data byte 1 0 0 1 Switched to not addressed SLV mode; Own SLA will be recognized; General call address will be recognized if S1ADR.0 = logic 1. A START condition will be transmitted when the bus becomes free. |
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