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M32C/86 数据表(PDF) 153 Page - Renesas Technology Corp

部件名 M32C/86
功能描述  RENESAS 16/32-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M32C/80 SERIES
PDF  505 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

M32C/86 数据表(HTML) 153 Page - Renesas Technology Corp

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Page 130
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13. DMAC
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Figure 13.4 DCT0 to DCT3 Registers and DRC0 to DRC3 Registers
Function
DMAi Transfer Count Register (i=0 to 3)
Setting Range
Symbol
Address
After Reset
DCT0(2)
(CPU Internal Register)
XXXX16
DCT1(2)
(CPU Internal Register)
XXXX16
DCT2(bank1;R0)(3)
(CPU Internal Register)
000016
DCT3(bank1;R1)(4)
(CPU Internal Register)
000016
RW
000016 to FFFF16(1)
Set the number of transfers
RW
NOTES:
1. When the DCTi register is set to "000016", no data transfer occurs regardless of a DMA request.
2. Use the LDC instruction to set the DCT0 and DCT1 registers.
3. To set the DCT2 register, set the B flag in the FLG register to "1" (register bank 1) and set the R0
register. Use the MOV instruction to set the R0 register.
4. To set the DCT3 register, set the B flag to "1" and set R1 register. Use the MOV instruction to
set the R1 register.
b15
b8 b7
b0
Function
DMAi Transfer Count Reload Register (i=0 to 3)
Setting Range
Symbol
Address
After Reset
DRC0(1)
(CPU Internal Register)
XXXX16
DRC1(1)
(CPU Internal Register)
XXXX16
DRC2(bank1;R2)(2)
(CPU Internal Register)
000016
DRC3(bank1;R3)(3)
(CPU Internal Register)
000016
RW
000016 to FFFF16
Set the number of transfers
RW
NOTES:
1. Use the LDC instruction to set the DRC0 and DRC1 registers.
2. To set the DRC2 register, set the B flag in the FLG register to "1" (register bank 1) and set the R2
register. Use the MOV instruction to set the R2 register.
3. To set the DRC3 register, set the B flag to "1" and set R3 register. Use the MOV instruction to set the
R3 register.
b15
b8 b7
b0



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