Datasheet

Chapter 6 Parallel Input/Output
MC9S08JM60 Series Data Sheet, Rev. 3
Freescale Semiconductor 95
76543210
R
PTFPE7 PTFPE6 PTFPE5 PTFPE4 PTFPE3 PTFPE2 PTFPE1 PTFPE0
W
Reset00000000
Figure 6-29. Internal Pullup Enable for Port F (PTFPE)
Table 6-28. PTFPE Register Field Descriptions
Field Description
7:0
PTFPE[7:0]
Internal Pullup Enable for Port F Bits — Each of these control bits determines if the internal pullup device is
enabled for the associated PTF pin. For port F 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 F bit n.
1 Internal pullup device enabled for port F bit n.
76543210
R
PTFSE7 PTFSE6 PTFSE5 PTFSE4 PTFSE3 PTFSE2 PTFSE1 PTFSE0
W
Reset11111111
Figure 6-30. Output Slew Rate Control Enable for Port F (PTFSE)
Table 6-29. PTFSE Register Field Descriptions
Field Description
7:0
PTFSE[7:0]
Output Slew Rate Control Enable for Port F Bits — Each of these control bits determine whether output slew
rate control is enabled for the associated PTF pin. For port F pins that are configured as inputs, these bits have
no effect.
0 Output slew rate control disabled for port F bit n.
1 Output slew rate control enabled for port F bit n.
76543210
R
PTFDS7 PTFDS6 PTFDS5 PTFDS4 PTFDS3 PTFDS2 PTFDS1 PTFDS0
W
Reset00000000
Figure 6-31. Output Drive Strength Selection for Port F (PTFDS)
Table 6-30. PTFDS Register Field Descriptions
Field Description
7:0
PTFDS[7:0]
Output Drive Strength Selection for Port F Bits — Each of these control bits selects between low and high
output drive for the associated PTF pin.
0 Low output drive enabled for port F bit n.
1 High output drive enabled for port F bit n.