NXP Semiconductors MC9S12G - Page 202

Port Integration Module (S12GPIMV1)
MC9S12G Family Reference Manual Rev.1.27
204 NXP Semiconductors
2
PUPCE
Port C Pullup Enable—Enable pullup devices on all port input pins
This bit configures whether a pullup device is activated on all associated port input pins. If a pin is used as output
this bit has no effect.
1 Pullup devices enabled
0 Pullup devices disabled
1
PUPBE
Port B Pullup Enable—Enable pullup devices on all port input pins
This bit configures whether a pullup device is activated on all associated port input pins. If a pin is used as output
this bit has no effect.
1 Pullup devices enabled
0 Pullup devices disabled
0
PUPAE
Port A Pullup Enable—Enable pullup devices on all port input pins
This bit configures whether a pullup device is activated on all associated port input pins. If a pin is used as output
this bit has no effect.
1 Pullup devices enabled
0 Pullup devices disabled
Table 2-32. PUCR Register Field Descriptions (continued)
Field Description