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Renesas RX Series User Manual

Renesas RX Series
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R01UH0823EJ0100 Rev.1.00 Page 339 of 1823
Jul 31, 2019
RX23W Group 18. DMA Controller (DMACA)
Figure 18.1 Block Diagram of DMAC
DMAC
DMAC core
DMAC
control
circuit
DMA
transfer
request
arbitration
Internal main bus 1
Internal main bus 2
Interrupt
controller
Activation control
Source address
Destination address
Transfer counter
Block counter
Transfer mode
4
Bus interface
DMSAR
DMDAR
DMCRA
DMCRB
DMOFR
DMTMD
DMAMD
DMCNT
DMSTS
DMAC channels
(CH0 to CH3)
DMAC registers
Register control
DMAC response
control
4
4
Interrupt
request
DMAC
response
DMA start
request
Internal main bus 2
ROM
Internal peripheral
bus interface
1 to 4, 6
Internal peripheral
bus interface 1
Memory bus 2 Memory bus 1
RAM

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Renesas RX Series Specifications

General IconGeneral
CoreRXv1, RXv2, RXv3
Flash MemoryUp to 8 MB
RAMUp to 1 MB
Operating Voltage1.62V to 5.5V
Operating Temperature-40°C to +85°C or +105°C
PackageBGA, LQFP
ADC Resolution12-bit
DAC Resolution12-bit
Communication InterfacesSCI, SPI, I2C, USB, Ethernet, CAN
Architecture32-bit
Security FeaturesMemory Protection Unit (MPU)

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