Renesas RA2 Series - Digilent Pmod Connectors; Pmod 1 Connector Details

Renesas RA Family FPB-RA2E1 v1 – User's Manual
R20UT4956EG0100 Rev 1.00 Page 11 of 24
Jul.23.21
Location
Circuit Group
Default
Open/Closed
Function
CN3
(not fitted)
Debugger
Jumper on pins 2-3
and open E27
Puts the RA2E1 MCU into SCI Boot Mode. See
the RA2E1 MCU hardware manual for further
details
E1
Pmod1 Power
Closed
Connects +3.3 V to Pmod1 pin 6
E2
Pmod1 Power
Open
Connects +5.0 V to Pmod1 pin 6
E3
Pmod1 SPI
Closed
Connects P102 (RSPCKA) to Pmod 1 pin 4
E4
Pmod1 I
2
C
Open
Connects P401 (SDA0) to Pmod 1 pin 4
E5
Pmod1 I
2
C
Open
Connects P400 (SCL0) to Pmod 1 pin 3
E6
Pmod1 SPI
Closed
Connects P100 (MISOA/RXD0) to Pmod 1 pin 3
E7
User LED2
Closed
Connects LED2 to P914
E8
User LED1
Closed
Connects LED1 to P015
E9
MCU Clock
Closed
Connects P212 net to MCU pin 10 (P212/EXTAL)
E10
MCU Clock
Open
Connects 20MHz crystal to MCU pin 10
E11
MCU Power
Closed
Connects AVCC0 (MCU pin 56) to +3.3 V
E12
MCU Clock
Open
Connects 20MHz crystal to MCU pin 9
E13
MCU Power
Closed
Connects P011/VREFL0 to GND (MCU pin 58)
E14
MCU Power
Closed
Connects AVSS0 (MCU pin 57) to GND
E15
MCU Clock
Closed
Connects P213 net to MCU pin 9 (P213/XTAL)
E16
MCU Power
Closed
Connects P010/VREFH0 to +3.3 V (MCU pin 59)
E17
MCU Clock
Closed
Connects P214 net to MCU pin 7 (P214/XCOUT)
E18
MCU Power
Open
Connects J4 pin 27 (Pin Header) and J1 pin 8
(Arduino) to MCU pin 59 (P010/VREFH0)
E19
MCU Clock
Open
Connects 32.768KHz crystal to MCU pin 7
E20
MCU Clock
Open
Connects 32.768KHz crystal to MCU pin 6
E21
MCU Clock
Closed
Connects P215 net to MCU pin 6 (P215/XCIN)
E23
Debugger Power
Closed
Connects debugger power to the +3.3 V regulator
E24
User Switch 1
Closed
Connects S1 to P205
E27
Debugger
Closed
Normal debug operation
J7
MCU Boot Mode
Open
Closed
Configures the MCU for Single-chip mode
Configures the MCU for SCI boot mode
R3
MCU Power
Fitted
Connects +3.3 V to MCU. Remove when testing
MCU current draw
5. System Control and Ecosystem Access
The FPB-RA2E1 provides a power supply regulator, an on-board debugger, simple I/O (switches and LEDs),
and popular I/O ecosystem connectors. These are all described in detail below.
5.1 Power
The FPB-RA2E1 board is designed for +5 V operation. An on-board Low Dropout (LDO) Regulator is used to
convert the 5 V supply to a 3.3 V supply. The 3.3 V supply is used to power the RA MCU and other
peripheral features.