Renesas R-IN32M3 Series User Manual page 26

R-IN32M3-CL User's Manual
2.1.5 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
SMSCK O
SMSI I/O
SMSO I/O
SMCSZ O
2.1.6 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-CL; a general
DMA controller for channel 0 and channel 1, and a DMA controller for real-time ports.
Pin Name
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
R18UZ0005EJ0400
Dec. 28, 2018
I/O 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
I/O Function
RTDMAC DMA transfer request input P62
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 Port Active
P14 -
P15 High
P16 High
P17 Low
<R>
Shared Port Active
Low
P63 Low
P64 Low
P65 Low
P66 Low
P67 Low
P32 Low
P33 Low
P34 Low
Modules.<R>
2. Pin Functions
Level during & after
Reset
Hi-Z (High)
Level during & after
Reset
Hi-Z (High)
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