R32C142_15 Datasheet, PDF (22/126 Pages) Renesas Technology Corp – RENESAS MCU

R32C/142 Group and R32C/145 Group
2. Central Processing Unit (CPU)
2.2 Fast Interrupt Registers
The following three registers are provided to minimize the overhead of the interrupt sequence.
2.2.1 Save Flag Register (SVF)
This 32-bit register is used to save the flag register when a fast interrupt is generated.
2.2.2 Save PC Register (SVP)
This 32-bit register is used to save the program counter when a fast interrupt is generated.
2.2.3 Vector Register (VCT)
This 32-bit register is used to indicate a jump address when a fast interrupt is generated.
2.3 DMAC-associated Registers
There are seven types of DMAC-associated registers.
2.3.1 DMA Mode Registers (DMD0, DMD1, DMD2, and DMD3)
These 32-bit registers are used to set DMA transfer mode, bit rate, etc.
2.3.2 DMA Terminal Count Registers (DCT0, DCT1, DCT2, and DCT3)
These 24-bit registers are used to set the number of DMA transfers.
2.3.3 DMA Terminal Count Reload Registers (DCR0, DCR1, DCR2, and DCR3)
These 24-bit registers are used to set the reloaded values for DMA terminal count registers.
2.3.4 DMA Source Address Registers (DSA0, DSA1, DSA2, and DSA3)
These 32-bit registers are used to set DMA source addresses.
2.3.5 DMA Source Address Reload Registers (DSR0, DSR1, DSR2, and DSR3)
These 32-bit registers are used to set the reloaded values for DMA source address registers.
2.3.6 DMA Destination Address Registers (DDA0, DDA1, DDA2, and DDA3)
These 32-bit registers are used to set DMA destination addresses.
2.3.7 DMA Destination Address Reload Registers (DDR0, DDR1, DDR2, and
DDR3)
These 32-bit registers are used to set reloaded values for DMA destination address registers.
R01DS0071EJ0110 Rev.1.10
Sep 09, 2011
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