SK-91465X-100PMC User Guide
Chapter 3 Jumpers and Switches
UG-910056-11
- 20 -
© Fujitsu Microelectronics Europe GmbH
3.9 FlexRay “Channel A” (FR-A)
One FlexRay transceiver (X9, X7) can be connected to one of the microcontroller’s FlexRay
interface (one channel). In addition further pins of the MCU can be connected to the FlexRay
transceiver for Error-read out feature and power supply switching.
JP45 Connects FlexRay transceiver TXD pin to microcontroller FlexRay TXDA pin
JP46 Connects FlexRay transceiver TXEN pin to microcontroller FlexRay TXENA pin
JP48 Connects FlexRay transceiver RXD pin to microcontroller FlexRay RXDA pin
JP41 Selects FlexRay transceiver STBN pin to Vio or microcontroller pin.
JP61 Selects FlexRay transceiver EN pin to Vio or microcontroller pin.
JP47 Connects FlexRay transceiver ERRN pin to microcontroller pin.
Jumper
Setting
Description
Closed
TXDA of the MCU is connected to FR-A
JP45
(TXDA)
Open
TXDA of the MCU is not connected to FR-A
Closed
TXENA of the MCU is connected to FR-A
JP46
(TXENA)
Open
TXENA of the MCU is not connected to FR-A
Closed
RXDA of the MCU is connected to FR-A
JP48
(RXDA)
Open
RXDA of the MCU is not connected to FR-A
1-2
STBN of the FR-A is connected to Vio-A.
JP41
(STBN-A)
2-3
STBN of the FR-A is connected to MCU pin.
1-2
EN of the FR-A is connected to Vio-A.
JP61
(EN-A)
2-3
EN of the FR-A is connected to MCU pin.
Closed
ERRN of the FR-A is connected to MCU pin.
JP47
(ERRN-A)
Open
ERRN of the FR-A is not connected to MCU pin.
Default: grey
Table 3-10: FlexRay “Channel A” jumper settings
