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H8/3003 数据表(PDF) 213 Page - Renesas Technology Corp |
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H8/3003 数据表(HTML) 213 Page - Renesas Technology Corp |
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213 / 715 page ![]() Bits 2 to 0—Data Transfer Select (DTS2B, DTS1B, DTS0B): These bits select the data transfer activation source. The selectable activation sources differ between normal mode and block transfer mode. Normal mode Bit 2 Bit 1 Bit 0 DTS2B DTS1B DTS0B Description 000Auto-request (burst mode) (Initial value) 1 * 1 0 Auto-request (cycle-steal mode) 1 * 100 * 1 * 1 0 Falling edge of DREQ 1 Low level input at DREQ Note: Settings marked with asterisks (*) cannot be used. Block transfer mode Bit 2 Bit 1 Bit 0 DTS2B DTS1B DTS0B Description 0 0 0 Compare match/input capture A interrupt from ITU channel 0 (Initial value) 1 Compare match/input capture A interrupt from ITU channel 1 1 0 Compare match/input capture A interrupt from ITU channel 2 1 Compare match/input capture A interrupt from ITU channel 3 10 0 * 1 * 1 0 Falling edge of DREQ 1 * Note: Settings marked with asterisks (*) cannot be used. The same internal interrupt can be selected to activate two or more channels. The channels are activated in a priority order, highest priority first. For the priority order, see section 8.4.9, Multiple-Channel Operation. 195 |
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