
User Manual - Rev1.0.2
M13design - 16 Dec. 21
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5.1.1
DATA / SPI0
The first series of shunts to remove/solder will connect the DQ00-DQ04 signals to the RA6M3. Doing
so will disconnect the SPI0 bus from the mikroBUS
TM
and both PMOD connectors as detailed in
Table 50. Multiplexing SDRAM Data & SPI0
RA6M3
Pin
RA6M3
Pin Description
Selected
Function
Shunt to remove
Shunt to solder
Deactivated
Function
132
P100 / MISOA_A / DQ00
DQ00
SH1
SH2
SPI0
131
P101 / MOSIA_A / DQ01
DQ01
SH3
SH4
SPI0
130
P102 / RSPCKA_A / DQ02
DQ02
SH5
SH6
SPI0
129
P104 / SSLA1_A / DQ04
DQ04
SH7
SH8
SPI0
128
P105 / SSLA2_A / DQ05
DQ05
SH9
SH10
SPI0
5.1.2
ADDR / SSIE0
The next series of shunts to remove/solder will connect the A01 to A04 signals to the RA6M3. Doing so
will disconnect the SSIE channel as detailed in
Table 51. Multiplexing SDRAM Addresses & SSIE0
RA6M3
Pin
RA6M3
Pin Description
Selected
Function
Shunt to remove
Shunt to solder
Deactivated
Function
93
P112 / SSIBCK0_B / A04
A04
SH13
SH14
SSIE0
94
P113 / SSILRCK0 / A03
A03
SH15
SH16
SSIE0
95
P114 / SSIRXD0_B / A02
A02
SH17
SH18
SSIE0
96
P115 / SSITXD0_B / A01
A01
SH19
SH20
SSIE0
5.1.3
ADDR / SCI2
The next series of shunts to remove/solder will connect the A06 & A07 signals to the RA6M3. This will
disconnect the UART channel (SCI2) of the mikroBUS
TM
connector as detailed in
Table 52. Multiplexing SDRAM Addresses & SCI2
RA6M3
Pin
RA6M3
Pin Description
Selected
Function
Shunt to remove
Shunt to solder
Deactivated
Function
87
P301 / RXD2 / A06
A06
SH21
SH22
SCI2
86
P302 / TXD2 / A07
A07
SH23
SH24
SCI2