Datasheet

Chapter 6 Parallel Input/Output
MC9S08JM60 Series Data Sheet, Rev. 3
Freescale Semiconductor 89
76543210
R
PTCPE6 PTCPE5 PTCPE4 PTCPE3 PTCPE2 PTCPE1 PTCPE0
W
Reset00000000
Figure 6-14. Internal Pullup Enable for Port C (PTCPE)
Table 6-13. PTCPE Register Field Descriptions
Field Description
6:0
PTCPE[6:0]
Internal Pullup Enable for Port C Bits — Each of these control bits determines if the internal pullup device is
enabled for the associated PTC pin. For port C pins that 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.
76543210
R
PTCSE6 PTCSE5 PTCSE4 PTCSE3 PTCSE2 PTCSE1 PTCSE0
W
Reset01111111
Figure 6-15. Output Slew Rate Control Enable for Port C (PTCSE)
Table 6-14. PTCSE Register Field Descriptions
Field Description
6:0
PTCSE[6:0]
Output Slew Rate Control Enable for Port C Bits — Each of these control bits determine whether output slew
rate control is enabled for the associated PTC pin. For port C pins that are configured as inputs, these bits have
no effect.
0 Output slew rate control disabled for port C bit n.
1 Output slew rate control enabled for port C bit n.
76543210
R
PTCDS6 PTCDS5 PTCDS4 PTCDS3 PTCDS2 PTCDS1 PTCDS0
W
Reset00000000
Figure 6-16. Output Drive Strength Selection for Port C (PTCDS)
Table 6-15. PTCDS Register Field Descriptions
Field Description
6:0
PTCDS[6:0]
Output Drive Strength Selection for Port C Bits — Each of these control bits selects between low and high
output drive for the associated PTC pin.
0 Low output drive enabled for port C bit n.
1 High output drive enabled for port C bit n.