mfr4200 Freescale Semiconductor, Inc, mfr4200 Datasheet - Page 40

• Manufacturer Part Number: mfr4200
• Description: Flexray Communication Controllers
• Manufacturer: Freescale Semiconductor, Inc

Device Overview
2.2.3.12 RXD_BG[1:2]/RXD[1:2]_485 — PHY Received Data, RS485 Received Data
The function of this pin is selected by the SCM[0:1] bits in the MCR0 register. Refer to
“Module Configuration Register 0
or disable either pullup or pulldown resistors on the pins.
RXD_BG[1:2] are bus driver receive data input signals if the FlexRay Optical/Electrical PHY is
configured:
RXD[1:2]_485 are bus driver receive data input signals if the RS485 Driver type is configured:
2.2.3.13 TXEN[1:2]#/TXE[1:2]_485# — PHY Transmit Enable, RS485 Transmit
TXEN[1:2]# are bus driver transmit enable output signals if the FlexRay Optical/Electrical PHY is
configured:
TXE[1:2]_485# are Bus Driver Transmit Enable output signals if the RS485 Driver type is configured:
Refer to
The pins can be configured to provide either high or reduced output drive.
2.2.3.14 TXD_BG1/TXD1_485/ IF_SEL1 — PHY Transmit Data 1, RS485 Transmit
The function of this pin is selected by the SCM[0:1] bits in the MCR0 register. Refer to
“Module Configuration Register 0
either high or reduced output drive.
TXD_BG[1:2] are bus driver transmit data output signals if the FlexRay Optical/Electrical PHY is
configured:
TXD[1:2]_485 are bus driver transmit data output signals if the RS485 Driver type is configured:
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RXD_BG1 is the input to the CC from Physical Layer Channel 1.
RXD_BG2 is the input to the CC from Physical Layer Channel 2.
RXD1_485 is the input to the CC from Physical Layer Channel 1
RXD2_485 is the input to the CC from Physical Layer Channel 2.
TXEN1# is the output of the CC to Physical Layer Channel 1
TXEN2# is the output of the CC to Physical Layer Channel 2.
TXE1_485# is the output of the CC to the Physical Layer Channel 1.
TXE2_485# is the output of the CC to the Physical Layer Channel 2.
TXD_BG1 is the output of the CC to Physical Layer Channel 1
TXD_BG2 is the output of the CC to Physical Layer Channel 2.
TXD1_485 is the output of the CC to Physical Layer Channel 1.
TXD2_485 is the output of the CC to Physical Layer Channel 2.
Figure 2-10
Enable
Data 1, Host Interface Selection 1
for an example RS485 bus driver connection using external glue logic.
(MCR0)” for more information. The pins can be configured to provide
(MCR0)” for more information. The pins can be configured to enable
MFR4200 Data Sheet, Rev. 0
Freescale Semiconductor
Section 3.2.3.2.1,
Section 3.2.3.2.1,