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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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HD6432351 데이터시트(PDF) 355 Page - Renesas Technology Corp |
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HD6432351 데이터시트(HTML) 355 Page - Renesas Technology Corp |
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355 / 1025 page  Section 8 Data Transfer Controller (DTC) Rev. 3.00 Sep 15, 2006 page 321 of 988 REJ09B0330-0300 8.5 Usage Notes Module Stop When the MSTP14 bit in MSTPCR is set to 1, the DTC clock stops, and the DTC enters the module stop state. However, 1 cannot be written in the MSTP14 bit while the DTC is operating. On-Chip RAM The MRA, MRB, SAR, DAR, CRA, and CRB registers are all located in on-chip RAM. When the DTC is used, the RAME bit in SYSCR must not be cleared to 0. DMAC Transfer End Interrupt When DTC transfer is activated by a DMAC transfer end interrupt, regardless of the transfer counter and DISEL bit, the DMAC’s DTE bit is not subject to DTC control, and the write data has priority. Consequently, an interrupt request may not be sent to the CPU when the DTC transfer counter reaches 0. DTCE Bit Setting For DTCE bit setting, use bit manipulation instructions such as BSET and BCLR. If all interrupts are masked, multiple activation sources can be set at one time by writing data after executing a dummy read on the relevant register. |
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