OM13013,598 NXP Semiconductors, OM13013,598 Datasheet - Page 218
OM13013,598
Manufacturer Part Number
OM13013,598
Description
BOARD DEMO IAR LPC1227 JLINKLITE
Manufacturer
NXP Semiconductors
Series
-r
Specifications of OM13013,598
Design Resources
LPC122x-SK Brd Schematic
Processor To Be Evaluated
LPC1227
Processor Series
LPC122x
Data Bus Width
32 bit
Interface Type
UART, SSP, SPI, I2C
Cpu Core
ARM Cortex-M0
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
3 V to 3.6 V
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
568-6885
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UM10441
User manual
11.11.6.2 State: 0x20
11.11.6.3 State: 0x28
11.11.6.4 State: 0x30
11.11.6.5 State: 0x38
11.11.7.1 State: 0x40
11.11.7 Master Receive states
Slave Address + Write has been transmitted, NOT ACK has been received. A STOP
condition will be transmitted.
Data has been transmitted, ACK has been received. If the transmitted data was the last
data byte then transmit a STOP condition, otherwise transmit the next data byte.
Data has been transmitted, NOT ACK received. A STOP condition will be transmitted.
Arbitration has been lost during Slave Address + Write or data. The bus has been
released and not addressed Slave mode is entered. A new START condition will be
transmitted when the bus is free again.
Previous state was State 08 or State 10. Slave Address + Read has been transmitted,
ACK has been received. Data will be received and ACK returned.
1. Write 0x14 to CONSET to set the STO and AA bits.
2. Write 0x08 to CONCLR to clear the SI flag.
3. Exit
1. Decrement the Master data counter, skip to step 5 if not the last data byte.
2. Write 0x14 to CONSET to set the STO and AA bits.
3. Write 0x08 to CONCLR to clear the SI flag.
4. Exit
5. Load DAT with next data byte from Master Transmit buffer.
6. Write 0x04 to CONSET to set the AA bit.
7. Write 0x08 to CONCLR to clear the SI flag.
8. Increment Master Transmit buffer pointer
9. Exit
1. Write 0x14 to CONSET to set the STO and AA bits.
2. Write 0x08 to CONCLR to clear the SI flag.
3. Exit
1. Write 0x24 to CONSET to set the STA and AA bits.
2. Write 0x08 to CONCLR to clear the SI flag.
3. Exit
1. Write 0x04 to CONSET to set the AA bit.
2. Write 0x08 to CONCLR to clear the SI flag.
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 15 February 2011
Chapter 11: LPC122x I2C-bus controller
UM10441
© NXP B.V. 2011. All rights reserved.
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