Freescale Semiconductor FlexRay MFR4310 - Functional Description; Functional Mode; Figure 4-8. Physical Layer Pins Pullup;Pulldown Control Register (PLPPCR); Table 4-8. PLPPER Field Descriptions

Functional Description
MFR4310 Reference Manual, Rev. 2
Freescale Semiconductor 215
4.3.1.8 Physical Layer Pins Pullup/pulldown Control Register (PLPPCR)
This register enables/disables the pullups/pulldowns of the host interface pins.
4.4 Functional Description
The Port Integration Module provides the capability to configure all functional I/O pins regarding:
• Output drive with two selectable drive strengths
• Pullup or pulldown
• Pin multiplexing and pin configuration constraints for reset mode
4.4.1 Functional Mode
In functional mode, the Port Integration Module controls the functional interface:
• Host Interface
• Physical Layer Interface
• Clock Interface
Table 4-8. PLPPER Field Descriptions
Field Description
0
RXD_BG1
Receive data (channel A) pullup/pulldown enable
0 pullup/pulldown disabled
1 pullup/pulldown enabled
1
RXD_BG2
Receive data (channel B) pullup/pulldown enable
0 pullup/pulldown disabled
1 pullup/pulldown enabled
Address in MFR4310 = 0x00FE Write: Any Time
1514131211109876543210
R00000000000000
RXD_BG2 RXD_BG1
W
Reset0000000000000000
Figure 4-8. Physical Layer Pins Pullup/pulldown Control Register (PLPPCR)
Table 4-9. PLPPCR Field Descriptions
Field Description
0
RXD_BG1
Receive data (channel A) pullup/pulldown control
0 pulldown
1 pullup
1
RXD_BG2
Receive data (channel B) pullup/pulldown control
0 pulldown
1 pullup