Datasheet

S12 MagniV Mixed-Signal MCUs
S12VR64EVB Jumper List and Description–continued...
Jumper Description
J31
RS232 Transceiver Power Supply Jumper
Jumper pins 1-2 closed connects the Vcc power supply input of the RS232 transceiver to the 5V MCU
regulated output
Jumper pins 2-3 closed connects the Vcc power supply input of the RS232 transceiver to the 5V RS232
voltage regulator circuitry
J33
MCU SCI TXD Pin Routing
Jumper pins 1-2 closed connects the MCU SCI TXD pin to OSBDM SCI RXD pin for debug purposes
Jumper pins 2-3 closed connects the MCU SCI TXD pin to the RS232 transceiver T1IN pin to transmitt RS232
standard data through the DB9 port
J34
MCU SCI RXD Pin Routing
Jumper pins 1-2 closed connects the MCU SCI RXD pin to OSBDM SCI TXD pin for debug purposes
Jumper pins 2-3 closed connects the MCU SCI RXD pin to the RS232 transceiver R1OUT pin to receive
RS232 standard data through the DB9 port