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UM10503
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© NXP B.V. 2015. All rights reserved.
User manual
Rev. 2.1 — 10 December 2015
1321 of 1441
NXP Semiconductors
UM10503
Chapter 46: LPC43xx/LPC43Sxx I2C-bus interface
4. Exit
5. Write 0x04 to CONSET to set the AA bit.
6. Write 0x08 to CONCLR to clear the SI flag.
7. Increment Master Receive buffer pointer
8. Exit
46.11.7.4 State: 0x58
Data has been received, NOT ACK has been returned. Data will be read from DAT. A
STOP condition will be transmitted.
1. Read data byte from DAT into Master Receive buffer.
2. Write 0x14 to CONSET to set the STO and AA bits.
3. Write 0x08 to CONCLR to clear the SI flag.
4. Exit
46.11.8 Slave Receiver states
46.11.8.1 State: 0x60
Own Slave A Write has been received, ACK has been returned. Data will be
received and ACK returned.
1. Write 0x04 to CONSET to set the AA bit.
2. Write 0x08 to CONCLR to clear the SI flag.
3. Set up Slave Receive mode data buffer.
4. Initialize Slave data counter.
5. Exit
46.11.8.2 State: 0x68
Arbitration has been lost in Slave Address and R/W bit as bus Master. Own Slave Address
+ Write has been received, ACK has been returned. Data will be received and ACK will be
returned. STA is set to restart Master mode after the bus is free again.
1. Write 0x24 to CONSET to set the STA and AA bits.
2. Write 0x08 to CONCLR to clear the SI flag.
3. Set up Slave Receive mode data buffer.
4. Initialize Slave data counter.
5. Exit.
46.11.8.3 State: 0x70
General call has been received, ACK has been returned. Data will be received and ACK
returned.
1. Write 0x04 to CONSET to set the AA bit.
2. Write 0x08 to CONCLR to clear the SI flag.
3. Set up Slave Receive mode data buffer.