R-IN32M3_15 Datasheet, PDF (24/105 Pages) Renesas Technology Corp – LSI for Industrial Ethernet

R-IN32M3 Series Data Sheet
2. Pin Information
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
SMSCK
SMSI
SMSO
SMCSZ
I/O
O
I/O
I/O
O
Function
Serial clock output port for serial flash
ROM
Serial data port for serial flash ROM
(Connect to SO of serial flash ROM)
Serial data port for serial flash ROM
(Connect to SI of serial flash ROM)
Chip select output port for serial flash
ROM
Shared Port
P14
P15
P16
P17
Active
↑/↓
High
High
Low
Level during reset
Hi-Z
With internal
pull-up resistor
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
RTDMAREQZ
RTDMAACKZ
RTDMATCZ
DMAREQZ0
DMAACKZ0
DMATCZ0
DMAREQZ1
DMAACKZ1
DMATCZ1
I/O
I
O
O
I
O
O
I
O
O
Function
RTDMAC DMA transfer request port
RTDMAC DMA acknowledge output
port
RTDMAC Terminal count output port
DMA transfer request port 0
DMA acknowledge output port 0
DMA Terminal count output port 0
DMA transfer request port 1
DMA acknowledge output port 1
DMA Terminal count output port 1
Shared Port
P62
P63
P64
P65
P66
P67
P32
P33
P34
Active
Low
Low
Low
Low
Low
Low
Low
Low
Low
Level during reset
Hi-Z
R-IN32M3-EC:
Hi-Z (without
internal resistor)
R-IN32M3-CL:
With internal
pull-up resistor
Hi-Z
With internal
pull-up resistor
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
R18DS0008EJ0204
Dec 25, 2014
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