System Control And Ecosystem Access; Power - Renesas RTK7FPA2E1S00001BE User Manual

Renesas RA Family
Location Circuit Group
CN3 Debugger
(not fitted)
E1 Pmod1 Power
E2 Pmod1 Power
E3 Pmod1 SPI
E4 Pmod1 I 2
2
E5 Pmod1 I
E6 Pmod1 SPI
E7 User LED2
E8 User LED1
E9 MCU Clock
E10 MCU Clock
E11 MCU Power
E12 MCU Clock
E13 MCU Power
E14 MCU Power
E15 MCU Clock
E16 MCU Power
E17 MCU Clock
E18 MCU Power
E19 MCU Clock
E20 MCU Clock
E21 MCU Clock
E23 Debugger Power
E24 User Switch 1
E27 Debugger
J7 MCU Boot Mode
R3 MCU Power

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.
R20UT4956EG0101 Rev 1.01
Sep.07.22
Default
Open/Closed
Jumper on pins 2-3
and open E27
Closed
Open
Closed
C Open
C Open
Closed
Closed
Closed
Closed
Open
Closed
Open
Closed
Closed
Closed
Closed
Closed
Open
Open
Open
Closed
Closed
Closed
Closed
Open
Closed
Fitted
FPB-RA2E1 v1 – User's Manual
Function
Puts the RA2E1 MCU into SCI Boot Mode. See
the RA2E1 MCU hardware manual for further
details
Connects +3.3 V to Pmod1 pin 6
Connects +5.0 V to Pmod1 pin 6
Connects P102 (RSPCKA) to Pmod 1 pin 4
Connects P401 (SDA0) to Pmod 1 pin 4
Connects P400 (SCL0) to Pmod 1 pin 3
Connects P100 (MISOA/RXD0) to Pmod 1 pin 3
Connects LED2 to P914
Connects LED1 to P015
Connects P212 net to MCU pin 10 (P212/EXTAL)
Connects 20MHz crystal to MCU pin 10
Connects AVCC0 (MCU pin 56) to +3.3 V
Connects 20MHz crystal to MCU pin 9
Connects P011/VREFL0 to GND (MCU pin 58)
Connects AVSS0 (MCU pin 57) to GND
Connects P213 net to MCU pin 9 (P213/XTAL)
Connects P010/VREFH0 to +3.3 V (MCU pin 59)
Connects P214 net to MCU pin 7 (P214/XCOUT)
Connects J4 pin 27 (Pin Header) and J1 pin 8
(Arduino) to MCU pin 59 (P010/VREFH0)
Connects 32.768KHz crystal to MCU pin 7
Connects 32.768KHz crystal to MCU pin 6
Connects P215 net to MCU pin 6 (P215/XCIN)
Connects debugger power to the +3.3 V regulator
Connects S1 to P205
Normal debug operation
Configures the MCU for Single-chip mode
Configures the MCU for SCI boot mode
Connects +3.3 V to MCU. Remove when testing
MCU current draw
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