mc9s08ac32 Freescale Semiconductor, Inc, mc9s08ac32 Datasheet - Page 102

• Manufacturer Part Number: mc9s08ac32
• Description: Hcs08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 6 Parallel Input/Output
6.6.12
In addition to the I/O control, port F pins are controlled by the registers listed below.
102
PTFPEn
PTFSEn
Reset
Reset
Field
Field
7:0
7:0
W
W
R
R
PTFPE7
PTFSE7
Port F Pin Control Registers (PTFPE, PTFSE, PTFDS)
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.
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.
0
0
7
7
Figure 6-30. Output Slew Rate Control Enable for Port F (PTFSE)
PTFPE6
PTFSE6
0
0
6
6
Figure 6-29. Internal Pullup Enable for Port F (PTFPE)
Table 6-28. PTFPE Register Field Descriptions
Table 6-29. PTFSE Register Field Descriptions
PTFPE5
PTFSE5
MC9S08AC60 Series Data Sheet, Rev. 2
0
0
5
5
PTFPE4
PTFSE4
0
0
4
4
Description
Description
PTFPE3
PTFSE3
3
0
3
0
PTFPE2
PTFSE2
0
0
2
2
PTFPE1
PTFSE1
Freescale Semiconductor
0
0
1
1
PTFPE0
PTFSE0
0
0
0
0