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| 型号： | R5F6461ELFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, FLASH, 48 MHz, MICROCONTROLLER, PQFP80 |
| 封装： | 12 X 12 MM, 0.50 MM PITCH, PLASTIC, LQFP-80 |
| 文件页数： | 7/72页 |
| 文件大小： | 839K |
| 代理商： | R5F6461ELFP |
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REJ03B0241-0010 Rev.0.10 Feb 14, 2008
Page 15 of 70
Under development
Preliminary Specification
Specifications in this preliminary version are subject to change.
R32C/161 Group
2. Central Processing Unit (CPU)
2.2
Fast Interrupt Registers
These registers are exclusively used to achieve high performance of interrupt sequence. 3 types of regis-
ter are shown as below.
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
7 types of register are shown as below.
2.3.1
DMA Mode Register (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 Register (DCT0, DCT1, DCT2, and DCT3)
These 24-bit registers are used to set DMA transfer counting.
2.3.3
DMA Terminal Count Reload Register (DCR0, DCR1, DCR2, and DCR3)
These 24-bit registers are used to set the reloaded value for DMA terminal count register.
2.3.4
DMA Source Address Register (DSA0, DSA1, DSA2, and DSA3)
These 32-bit registers are used to set DMA source address.
2.3.5
DMA Source Address Reload Register (DSR0, DSR1, DSR2, and DSR3)
These 32-bit registers are used to set the reloaded value for DMA source address register.
2.3.6
DMA Destination Address Register (DDA0, DDA1, DDA2, and DDA3)
These 32-bit registers are used to set DMA destination address.
2.3.7
DMA Destination Address Reload Register (DDR0, DDR1, DDR2, and
DDR3)
These 32-bit registers are used to set the reloaded value for DMA destination address register.
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