R-IN32M3 Datasheet, PDF (25/116 Pages) Renesas Technology Corp – LSI for Industrial Ethernet

R-IN32M3 Series Data Sheet
2. Pin Information
2.3.6
Serial Flash ROM Interface Pins
The serial flash ROM interface pins are pins of the serial flash ROM memory controller.
They support fast read, fast read dual output and fast read dual I/O modes.
Pin Name
SMSCK
SMSI
SMSO
SMCSZ
I/O
O
I/O
I/O
O
Function
Shared Port Active
Serial clock output signal for serial
P14
flash ROM
Serial data I/O signal for serial flash P15
ROM (connected to the SO pin of
serial flash ROM)
Serial data I/O signal for serial flash P16
ROM (connected to the SI pin of serial
flash ROM)
Chip select output signal for serial
P17
flash ROM
-
High
High
Low
Level during
Reset
Hi-Z (High)
2.3.7
DMA Interface Pins
The DMA interface pins are interface pins of the DMA controllers for the internal AHB bus.
There are two DMA controllers: one with four internal channels but only two external interfaces, and one with one
internal channel and one external interface.
Pin Name
RTDMAREQZ
RTDMAACKZ
RTDMATCZ
DMAREQZ0
DMAACKZ0
DMATCZ0
DMAREQZ1
DMAACKZ1
DMATCZ1
I/O
I
O
O
I
O
O
I
O
O
Function
Shared Port
Active
RTDMAC DMA transfer request input P62
Low
RTDMAC DMA acknowledge output P63
Low
RTDMAC terminal count output
P64
Low
DMA transfer request input 0
P65
Low
DMA acknowledge output 0
P66
Low
DMA terminal count output 0
P67
Low
DMA transfer request input 1
P32
Low
DMA acknowledge output 1
P33
Low
Terminal count output 1
P34
Low
Level during
Reset
Note
Hi-Z (High)
Caution: Each DMA interface is assigned to a specific DMA channel.
Note: Hi-Z for R-IN32M3-EC and hi-Z (High) for R-IN32M3-CL.
R18DS0008EJ0401
Feb 28, 2017
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