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MC9S08DZ128 Datasheet, PDF (130/458 Pages) Freescale Semiconductor, Inc – Microcontrollers | |||
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Chapter 6 Parallel Input/Output Control
6.5.8.3 Port H Pull Enable Register (PTHPE)
R
W
Reset:
7
PTHPE7
0
6
PTHPE6
5
PTHPE5
4
PTHPE4
3
PTHPE3
2
PTHPE2
1
PTHPE1
0
0
0
0
0
0
Figure 6-49. Internal Pull Enable for Port H Register (PTHPE)
Table 6-47. PTHPE Register Field Descriptions
0
PTHPE0
0
Field
Description
7:0
PTHPE[7:0]
Internal Pull Enable for Port H Bits â Each of these control bits determines if the internal pull-up device is
enabled for the associated PTH pin. For port H pins that are conï¬gured as outputs, these bits have no effect and
the internal pull devices are disabled.
0 Internal pull-up device disabled for port H bit n.
1 Internal pull-up device enabled for port H bit n.
NOTE
Pull-down devices only apply when using pin interrupt functions, when
corresponding edge select and pin select functions are conï¬gured.
6.5.8.4 Port H Slew Rate Enable Register (PTHSE)
R
W
Reset:
7
PTHSE7
0
6
PTHSE6
5
PTHSE5
4
PTHSE4
3
PTHSE3
2
PTHSE2
1
PTHSE1
0
0
0
0
0
0
Figure 6-50. Slew Rate Enable for Port H Register (PTHSE)
Table 6-48. PTHSE Register Field Descriptions
0
PTHSE0
0
Field
Description
7:0
PTHSE[7:0]
Output Slew Rate Enable for Port H Bits â Each of these control bits determines if the output slew rate control
is enabled for the associated PTH pin. For port H pins that are conï¬gured as inputs, these bits have no effect.
0 Output slew rate control disabled for port H bit n.
1 Output slew rate control enabled for port H bit n.
Note: Slew rate reset default values may differ between engineering samples and ï¬nal production parts. Always initialize slew
rate control to the desired value to ensure correct operation.
MC9S08DZ128 Series Data Sheet, Rev. 1
130
Freescale Semiconductor
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