Channel B - Fujitsu MB88121 SERIES User Manual

JP49 Connects FT1080 module CH-A WAKE to configuration switch S6
JP50 Connects FT1080 module CH-A nSTB to configuration switch S6
JP55 Connects FT1080 module CH-A nERR to MCU port P14_4
JP53 Selects VccPL (supply voltage of CH-A and CH-B FT1080 modules) 3.3V or 5V
JP56 Connects FT1080 module CH-A VBat to VBat (input voltage of the starter kit)
Jumper
JP35
JP40
JP45
JP38
JP41
JP34, JP36
JP48
JP49
JP50
JP55
JP53
JP56
Default: grey

3.6.2 Channel B

JP61 Connects FlexRay channel B RxD to RS-485 transceiver (FT1080 must not be
plugged in X7!)
JP66 Connects FlexRay channel B TxEN to RS-485 transceiver (FT1080 must not be
plugged in X7!)
JP70 Connects FlexRay channel B TxD to RS-485 transceiver (FT1080 must not be
plugged in X7!)
FMEMCU-UG-910017-11
SK-91F467-FLEXRAY V1.1
Jumpers and Switches
Setting Description
ON (closed) TXDA connected to RS-485 transceiver
OFF (open) TXDA not connected to RS-485 transceiver
ON (closed) TXENA connected to RS-485 transceiver
OFF (open) TXENA not connected to RS-485 transceiver
ON (closed) RXDA connected to RS-485 transceiver
OFF (open) RXDA not connected to RS-485 transceiver
ON (closed) CH-A RS-485 output B connected to X2
OFF (open) CH-A RS-485 output B not connected to X2
ON (closed) CH-A RS-485 output A connected to X2
OFF (open) CH-A RS-485 output A not connected to X2
ON (closed) Line termination connected to CH-A RS-485
OFF (open) Line termination not connected to CH-A RS-485
ON (closed) CH-A FT1080 EN connected to S6
OFF (open) CH-A FT1080 EN connected to S6
ON (closed) CH-A FT1080 WAKE connected to S6
OFF (open) CH-A FT1080 WAKE connected to S6
ON (closed) CH-A FT1080 nSTB connected to S6
OFF (open) CH-A FT1080 nSTB connected to S6
ON (closed) CH-A FT1080 nERR connected to MCU P14_4
OFF (open) CH-A FT1080 nERR not connected to MCU P14_4
1-2 Vcc 5V is connected to VccPL
2-3 Vcc 3.3V is connected to VccPL
ON (closed) VBat is connected to FT1080 CH-A
OFF (open) VBat is not connected to FT1080 CH-A
Table 3-11: FlexRay CH-A Configuration
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