Fujitsu SK-91464A-100PMC User Manual - Page 14
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3.4 UART"A" (JP: 1, 2, 31)
One RS232-transceiver (U1, X3) can be connected to one of the microcontroller's UART
interfaces.
JP1, JP2 connect UART 3 to the RS232-transceiver (U1, X3)
JP31
Some programs (e.g. Terminals) need a connection between CTS and RTS
Jumper
JP2 (UART"A"RxD)
JP1 (UART"A"TxD)
JP31 (RTS-CTS)
By default, UART3 is connected to UART"A".
3.5 UART"B" (JP: 6, 8, 32)
One RS232-transceiver (U3, X5) can be connected to one of the microcontroller's UART
interfaces.
JP6, JP8 connect UART 4 to the RS232-transceiver (U3, X5)
JP32
Some programs (e.g. Terminals) need a connection between CTS and RTS
Jumper
JP6 (UART"B"RxD)
JP8 (UART"B"TxD)
JP32 (RTS-CTS)
By default, UART4 is connected to UART"B".
UART "B" can be used for serial asynchronous Flash programming.
FMEMCU-UG-910025-15
SK-91464A-100PMC User Guide
Chapter 3 Jumpers and Switches
Setting
Description
Closed
SIN3 of the MCU is connected to UART"A"
Open
SIN3 of the MCU is not connected to UART"A"
Closed
SOT3 of the MCU is connected to UART"A"
Open
SOT3 of the MCU is not connected to UART"A"
Closed
RTS and CTS of X3 are connected
Open
RTS and CTS of X3 are not connected
Setting
Description
Closed
SIN4 of the MCU is connected to UART"B"
Open
SIN4 of the MCU is not connected to UART"B"
Closed
SOT4 of the MCU is connected to UART"B"
Open
SOT4 of the MCU is not connected to UART"B"
Closed
RTS and CTS of X5 are connected
Open
RTS and CTS of X5 are not connected
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