8.5.8 Port B Pullup/Pulldown Enable Register (PORT_PTBPE)Address: 0h base + 18E1h offset = 18E1hBit 7 6 5 4 3 2 1 0Read PTBPEWriteReset 0 0 0 0 0 0 0 0PORT_PTBPE field descriptionsField DescriptionPTBPE Pull Enable for Port B BitThese bits determines if the internal pullup/pulldown device is enabled for the associated PTB pin. For portB pins that are configured as outputs, these bits have no effect and the internal pullup/pulldown devicesare disabled.NOTE: PTB0-PTB2 is default pulldown, can not be pullup enabled. PTB3-PTB5 can be pulldownenabled.0 Internal pullup//pulldown device disabled for port B bit n.1 Internal pullup/pulldown device enabled for port B bit n.8.5.9 Port C Pullup Enable Register (PORT_PTCPE)Address: 0h base + 18E2h offset = 18E2hBit 7 6 5 4 3 2 1 0Read 0 PTCPEWriteReset 0 0 0 0 0 0 0 0PORT_PTCPE field descriptionsField Description7–1ReservedThis field is reserved.This read-only field is reserved and always has the value 0.0PTCPEPull Enable for Port C BitThese bits determines if the internal pullup device is enabled for the associated PTC pin. For port C pinsthat are configured as outputs, these bits have no effect and the internal pullup devices are disabled.0 Internal pullup device disabled for port C bit n.1 Internal pullup device enabled for port C bit n.Chapter 8 Port Control (PORT)MC9S08SU16 Reference Manual, Rev. 5, 4/2017NXP Semiconductors 91
