NXP Semiconductors LPC43 Series User Manual

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NXP Semiconductors LPC43 Series User Manual Manual pdf 1152 page image

UM10503 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.User manual Rev. 1.3 — 6 July 2012 1152 of 1269NXP Semiconductors UM10503Chapter 43: LPC43xx I2C-bus interface43.11.8.8 State: 0x98Previously addressed with General Call. Data has been received, NOT ACK has beenreturned. Received data will not be saved. Not addressed Slave mode is entered.1. Write 0x04 to CONSET to set the AA bit.2. Write 0x08 to CONCLR to clear the SI flag.3. Exit43.11.8.9 State: 0xA0A STOP condition or Repeated START has been received, while still addressed as aSlave. Data will not be saved. Not addressed Slave mode is entered.1. Write 0x04 to CONSET to set the AA bit.2. Write 0x08 to CONCLR to clear the SI flag.3. Exit43.11.9 Slave Transmitter states43.11.9.1 State: 0xA8Own Slave Address + Read has been received, ACK has been returned. Data will betransmitted, ACK bit will be received.1. Load DAT from Slave Transmit buffer with first data byte.2. Write 0x04 to CONSET to set the AA bit.3. Write 0x08 to CONCLR to clear the SI flag.4. Set up Slave Transmit mode data buffer.5. Increment Slave Transmit buffer pointer.6. Exit43.11.9.2 State: 0xB0Arbitration lost in Slave Address and R/W bit as bus Master. Own Slave Address + Readhas been received, ACK has been returned. Data will be transmitted, ACK bit will bereceived. STA is set to restart Master mode after the bus is free again.1. Load DAT from Slave Transmit buffer with first data byte.2. Write 0x24 to CONSET to set the STA and AA bits.3. Write 0x08 to CONCLR to clear the SI flag.4. Set up Slave Transmit mode data buffer.5. Increment Slave Transmit buffer pointer.6. Exit43.11.9.3 State: 0xB8Data has been transmitted, ACK has been received. Data will be transmitted, ACK bit willbe received.1. Load DAT from Slave Transmit buffer with data byte.