HCS08 datasheet(95/374 Pages) NXP

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Chapter 6 Parallel Input/Output

MC9S08JM60 Series Data Sheet, Rev. 5

Freescale Semiconductor

321

PTFPE7

PTFPE6

PTFPE5

PTFPE4

PTFPE3

PTFPE2

PTFPE1

PTFPE0

Reset

000

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.

321

PTFSE7

PTFSE6

PTFSE5

PTFSE4

PTFSE3

PTFSE2

PTFSE1

PTFSE0

Reset

111

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.

321

PTFDS7

PTFDS6

PTFDS5

PTFDS4

PTFDS3

PTFDS2

PTFDS1

PTFDS0

Reset

000

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.

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