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SH7052 bảng dữ liệu(PDF) 194 Page - Renesas Technology Corp

tên linh kiện SH7052
Giải thích chi tiết về linh kiện  SuperHTM RISC engine
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nhà sản xuất  RENESAS [Renesas Technology Corp]
Trang chủ  http://www.renesas.com
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SH7052 bảng dữ liệu(HTML) 194 Page - Renesas Technology Corp

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9.4
Examples of Use
9.4.1
Example of DMA Transfer between On-Chip SCI and External Memory
In this example, on-chip serial communication interface channel 0 (SCI0) receive data is
transferred to external memory using DMAC channel 0.
Table 9.5 indicates the transfer conditions and the set values of each of the registers.
Table 9.5
Transfer Conditions and Register Set Values for Transfer between On-chip SCI
and External Memory
Transfer Conditions
Register
Value
Transfer source: RDR0 of on-chip SCI0
SAR0
H'FFFFF005
Transfer destination: external memory
DAR0
H'00400000
Transfer count: 64 times
DMATCR0
H'00000040
Transfer source address: fixed
CHCR0
H'00020105
Transfer destination address: incremented
Transfer request source: SCI0 (RDR0)
Bus mode: cycle-steal
Transfer unit: byte
Interrupt request generation at end of transfer
DMAC master enable on
DMAOR
H'0001
9.4.2
Example of DMA Transfer between A/D Converter and On-Chip Memory
(Address Reload On)
In this example, on-chip A/D converter channel 0 is the transfer source and on-chip memory is the
transfer destination, and the address reload function is on.
Table 9.6 indicates the transfer conditions and the set values of each of the registers.



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