Datasheet

Chapter 6 Parallel Input/Output Control
MC9S08DZ128 Series Data Sheet, Rev. 1
130 Freescale Semiconductor
6.5.8.3 Port H Pull Enable Register (PTHPE)
NOTE
Pull-down devices only apply when using pin interrupt functions, when
corresponding edge select and pin select functions are configured.
6.5.8.4 Port H Slew Rate Enable Register (PTHSE)
Note: Slew rate reset default values may differ between engineering samples and final production parts. Always initialize slew
rate control to the desired value to ensure correct operation.
76543210
R
PTHPE7 PTHPE6 PTHPE5 PTHPE4 PTHPE3 PTHPE2 PTHPE1 PTHPE0
W
Reset: 00000000
Figure 6-49. Internal Pull Enable for Port H Register (PTHPE)
Table 6-47. PTHPE Register Field Descriptions
Field Description
7:0
PTHPE[7:0]
Internal Pull Enable for Port H Bits — 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 configured 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.
76543210
R
PTHSE7 PTHSE6 PTHSE5 PTHSE4 PTHSE3 PTHSE2 PTHSE1 PTHSE0
W
Reset: 00000000
Figure 6-50. Slew Rate Enable for Port H Register (PTHSE)
Table 6-48. PTHSE Register Field Descriptions
Field Description
7:0
PTHSE[7:0]
Output Slew Rate Enable for Port H Bits — 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 configured 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.