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R-IN32M3 Datasheet(PDF) 24 Page - Renesas Technology Corp |
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R-IN32M3 Datasheet(HTML) 24 Page - Renesas Technology Corp |
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24 / 105 page  R-IN32M3 Series Data Sheet 2. Pin Information R18DS0008EJ0204 Page 24 of 100 Dec 25, 2014 2.3.6 Serial Flash ROM Interface Signals The Serial Flash ROM Interface supports Fast Read, Fast Read Dual Output and Fast Read Dual I/O mode. Pin Name I/O Function Shared Port Active Level during reset SMSCK O Serial clock output port for serial flash ROM P14 ↑ / ↓ Hi-Z With internal pull-up resistor SMSI I/O Serial data port for serial flash ROM (Connect to SO of serial flash ROM) P15 High SMSO I/O Serial data port for serial flash ROM (Connect to SI of serial flash ROM) P16 High SMCSZ O Chip select output port for serial flash ROM P17 Low 2.3.7 DMA Interface Signals There are two DMA Controllers: one with four internal channels but only two external interfaces, and one with one internal channel and one external interce as real-time DMA controller. Pin Name I/O Function Shared Port Active Level during reset RTDMAREQZ I RTDMAC DMA transfer request port P62 Low Hi-Z R-IN32M3-EC: Hi-Z (without internal resistor) R-IN32M3-CL: With internal pull-up resistor RTDMAACKZ O RTDMAC DMA acknowledge output port P63 Low RTDMATCZ O RTDMAC Terminal count output port P64 Low DMAREQZ0 I DMA transfer request port 0 P65 Low DMAACKZ0 O DMA acknowledge output port 0 P66 Low DMATCZ0 O DMA Terminal count output port 0 P67 Low DMAREQZ1 I DMA transfer request port 1 P32 Low Hi-Z With internal pull-up resistor DMAACKZ1 O DMA acknowledge output port 1 P33 Low DMATCZ1 O DMA Terminal count output port 1 P34 Low Caution Each DMA interface is assigned to a specific DMA channel. DMA channel 0 = interface 0 (DMAREQZ0, DMAACKZ0, DMATCZ0) DMA channel 1 = interface 1 (DMAREQZ1, DMAACKZ1, DMATCZ1) DMA channels 2, 3 = no external interface |
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