SK-96380-120PMT User Guide
Chapter 3 Jumpers and Switches
FMEMCU-UG-960001-15
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© Fujitsu Microelectronics Europe GmbH
3.5 CAN interfaces (X6 and X8)
Two high-speed CAN-transceivers can be connected to the microcontroller’s CAN interfaces
(CAN0 and CAN1).
Jumper
Setting
Description
JP24 (CAN0 RX)
Closed
RX0 of MCU is connected to CAN0 (X6)
JP26 (CAN0 TX)
Closed
TX0 of MCU is connected to CAN0 (X6)
JP34 (CAN1 RX)
Closed
RX1 of MCU is connected to CAN1 (X8)
JP35 (CAN1 TX)
Closed
TX1 of MCU is connected to CAN1 (X8)
Table 3-7: CAN Settings
3.6 Reset
Generation
(JP: 32, 33, 41, 48)
In addition to the internal Power-On reset, the microcontroller can be reset by an external
reset circuit (Voltage Monitor) and also by a RS232 interface. Refer to the chapter ‘LIN /
UART Connectors (X5 or X9)’ for DTR / RTS selection.
JP33
Selects X5 or X9 as reset source
JP41
The signal on the DTR/RTS line can be negated with this jumper.
Remove the jumper in order to disable the RS232 reset circuit.
JP46
With this jumper the time to hold down reset button SW6 controlled
JP48
Open this jumper if no external Reset shall be generated.
In this case only the internal reset is active (e.g.: power-on)
Jumper
Setting
Description
1-2
LIN-UART0 (X5) connected to reset circuit
JP33 (UART RESET)
2-3
LIN-UART2 (X9) connected to reset circuit
1-2
No negation for the DTR/RTS signal
JP41 (DTR / DTRx)
2-3
DTR/RTS signal is negated
1-2
Reset is applied immediately when SW6 is pressed
JP46
(Reset imm./delayed)
2-3
Reset is applied when SW6 is pressed >2sec
Closed
External reset generation is active
JP48 (RST MCU)
Open No
external
reset
generation
Table 3-8: Reset Connection
By default, the external reset is enabled and set to immediate reset, the reset by UART is
disabled.