Datasheet
Table Of Contents
- RP2040 Datasheet
- Colophon
- Chapter 1. Introduction
- Chapter 2. System Description
- 2.1. Bus Fabric
- 2.2. Address Map
- 2.3. Processor subsystem
- 2.4. Cortex-M0+
- 2.5. DMA
- 2.6. Memory
- 2.7. Boot Sequence
- 2.8. Bootrom
- 2.9. Power Supplies
- 2.10. Core Supply Regulator
- 2.11. Power Control
- 2.12. Chip-Level Reset
- 2.13. Power-On State Machine
- 2.14. Subsystem Resets
- 2.15. Clocks
- 2.16. Crystal Oscillator (XOSC)
- 2.17. Ring Oscillator (ROSC)
- 2.18. PLL
- 2.19. GPIO
- 2.20. Sysinfo
- 2.21. Syscfg
- 2.22. TBMAN
- Chapter 3. PIO
- Chapter 4. Peripherals
- 4.1. USB
- 4.2. UART
- 4.3. I2C
- 4.3.1. Features
- 4.3.2. IP Configuration
- 4.3.3. I2C Overview
- 4.3.4. I2C Terminology
- 4.3.5. I2C Behaviour
- 4.3.6. I2C Protocols
- 4.3.7. Tx FIFO Management and START, STOP and RESTART Generation
- 4.3.8. Multiple Master Arbitration
- 4.3.9. Clock Synchronization
- 4.3.10. Operation Modes
- 4.3.11. Spike Suppression
- 4.3.12. Fast Mode Plus Operation
- 4.3.13. Bus Clear Feature
- 4.3.14. IC_CLK Frequency Configuration
- 4.3.15. DMA Controller Interface
- 4.3.16. Operation of Interrupt Registers
- 4.3.17. List of Registers
- 4.4. SPI
- 4.5. PWM
- 4.6. Timer
- 4.7. Watchdog
- 4.8. RTC
- 4.9. ADC and Temperature Sensor
- 4.10. SSI
- 4.10.1. Overview
- 4.10.2. Features
- 4.10.3. IP Modifications
- 4.10.4. Clock Ratios
- 4.10.5. Transmit and Receive FIFO Buffers
- 4.10.6. 32-Bit Frame Size Support
- 4.10.7. SSI Interrupts
- 4.10.8. Transfer Modes
- 4.10.9. Operation Modes
- 4.10.10. Partner Connection Interfaces
- 4.10.11. DMA Controller Interface
- 4.10.12. APB Interface
- 4.10.13. List of Registers
- Chapter 5. Electrical and Mechanical
- Appendix A: Register Field Types
- Appendix B: Errata
- Appendix C: Documentation Release History
Offset Name Info
0x104 CH4_WRITE_ADDR DMA Channel 4 Write Address pointer
0x108 CH4_TRANS_COUNT DMA Channel 4 Transfer Count
0x10c CH4_CTRL_TRIG DMA Channel 4 Control and Status
0x110 CH4_AL1_CTRL Alias for channel 4 CTRL register
0x114 CH4_AL1_READ_ADDR Alias for channel 4 READ_ADDR register
0x118 CH4_AL1_WRITE_ADDR Alias for channel 4 WRITE_ADDR register
0x11c CH4_AL1_TRANS_COUNT_TRIG Alias for channel 4 TRANS_COUNT register
This is a trigger register (0xc). Writing a nonzero value will
reload the channel counter and start the channel.
0x120 CH4_AL2_CTRL Alias for channel 4 CTRL register
0x124 CH4_AL2_TRANS_COUNT Alias for channel 4 TRANS_COUNT register
0x128 CH4_AL2_READ_ADDR Alias for channel 4 READ_ADDR register
0x12c CH4_AL2_WRITE_ADDR_TRIG Alias for channel 4 WRITE_ADDR register
This is a trigger register (0xc). Writing a nonzero value will
reload the channel counter and start the channel.
0x130 CH4_AL3_CTRL Alias for channel 4 CTRL register
0x134 CH4_AL3_WRITE_ADDR Alias for channel 4 WRITE_ADDR register
0x138 CH4_AL3_TRANS_COUNT Alias for channel 4 TRANS_COUNT register
0x13c CH4_AL3_READ_ADDR_TRIG Alias for channel 4 READ_ADDR register
This is a trigger register (0xc). Writing a nonzero value will
reload the channel counter and start the channel.
0x140 CH5_READ_ADDR DMA Channel 5 Read Address pointer
0x144 CH5_WRITE_ADDR DMA Channel 5 Write Address pointer
0x148 CH5_TRANS_COUNT DMA Channel 5 Transfer Count
0x14c CH5_CTRL_TRIG DMA Channel 5 Control and Status
0x150 CH5_AL1_CTRL Alias for channel 5 CTRL register
0x154 CH5_AL1_READ_ADDR Alias for channel 5 READ_ADDR register
0x158 CH5_AL1_WRITE_ADDR Alias for channel 5 WRITE_ADDR register
0x15c CH5_AL1_TRANS_COUNT_TRIG Alias for channel 5 TRANS_COUNT register
This is a trigger register (0xc). Writing a nonzero value will
reload the channel counter and start the channel.
0x160 CH5_AL2_CTRL Alias for channel 5 CTRL register
0x164 CH5_AL2_TRANS_COUNT Alias for channel 5 TRANS_COUNT register
0x168 CH5_AL2_READ_ADDR Alias for channel 5 READ_ADDR register
0x16c CH5_AL2_WRITE_ADDR_TRIG Alias for channel 5 WRITE_ADDR register
This is a trigger register (0xc). Writing a nonzero value will
reload the channel counter and start the channel.
0x170 CH5_AL3_CTRL Alias for channel 5 CTRL register
0x174 CH5_AL3_WRITE_ADDR Alias for channel 5 WRITE_ADDR register
RP2040 Datasheet
2.5. DMA 105