Renesas R-IN32M3 Series User Manual page 31

R-IN32M3-EC User's Manual
2.1.6 Serial Flash ROM Interface Pins
The serial flash ROM interface pins are pins of the serial flash ROM memory controller.
They support the fast read, fast read dual output, and fast read dual I/O modes.
Pin Name I/O
SMSCK O
SMSI I/O
SMSO I/O
SMCSZ O
2.1.7 DMA Interface Pins
The DMA interface pins are external interface pins of the DMA controllers for the internal AHB bus.
As the external DMA interface, they control two types of DMA controllers incorporated in the R-IN32M3-EC; a general
DMA controller for channel 0 and channel 1, and a DMA controller for real-time ports.
Pin Name I/O
RTDMAREQZ I
RTDMAACKZ O
RTDMATCZ O
DMAREQZ0 I
DMAACKZ0 O
DMATCZ0 O
DMAREQZ1 I
DMAACKZ1 O
DMATCZ1 O
Caution: The DMA interface pin is fixed to the specific channel of the DMA controller, and not
assigned to any other DMA controller or channel. For details, see section 13, DMA
Controllers, in the R-IN32M3 Series User's Manual: Peripheral Modules.
R18UZ0003EJ0501
Jan. 12, 2021
Function
Serial clock output signal for serial flash
ROM
Serial data I/O signal for serial flash ROM
(connected to the SO pin of serial flash
ROM)
Serial data I/O signal for serial flash ROM
(connected to the SI pin of serial flash
ROM)
Chip select output signal for serial flash
ROM
Function
RTDMAC DMA transfer request input
RTDMAC DMA acknowledge output
RTDMAC terminal count output
DMA transfer request input 0
DMA acknowledge output 0
Terminal count output 0
DMA transfer request input 1
DMA acknowledge output 1
Terminal count output port 1
Shared Level during & after
Port Active
P14 - Hi-Z (High)
P15 High
P16 High
P17 Low
Shared Level during & after
Port Active
P62 Low Hi-Z
P63 Low
P64 Low
P65 Low
P66 Low
P67 Low
P32 Low Hi-Z (High)
P33 Low
P34 Low
2. Pin Functions
Reset
Reset
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