MC9S08EL32 Datasheet, PDF (92/356 Pages) Freescale Semiconductor, Inc – 8-Bit HCS08 Central Processor Unit (CPU)

Chapter 6 Parallel Input/Output Control
6.5.3.3 Port C Pull Enable Register (PTCPE)
R
W
Reset:
7
PTCPE7
0
6
PTCPE6
5
PTCPE5
4
PTCPE4
3
PTCPE3
2
PTCPE2
1
PTCPE1
0
0
0
0
0
0
Figure 6-21. Internal Pull Enable for Port C Register (PTCPE)
Table 6-19. PTCPE Register Field Descriptions
0
PTCPE0
0
Field
Description
7:0
PTCPE[7:0]
Internal Pull Enable for Port C Bits — Each of these control bits determines if the internal pull-up or internal
(pin interrupt only) pull-down device is enabled for the associated PTC pin. For port C pins that are configured
as outputs, these bits have no effect and the internal pull devices are disabled.
0 Internal pull-up/pull-down device disabled for port C bit n.
1 Internal pull-up/pull-down device enabled for port C bit n.
6.5.3.4 Port C Slew Rate Enable Register (PTCSE)
R
W
Reset:
7
PTCSE7
0
6
PTCSE6
5
PTCSE5
4
PTCSE4
3
PTCSE3
2
PTCSE2
1
PTCSE1
0
0
0
0
0
0
Figure 6-22. Slew Rate Enable for Port C Register (PTCSE)
Table 6-20. PTCSE Register Field Descriptions
0
PTCSE0
0
Field
Description
7:0
PTCSE[7:0]
Output Slew Rate Enable for Port C Bits — Each of these control bits determines if the output slew rate control
is enabled for the associated PTC pin. For port C pins that are configured as inputs, these bits have no effect.
0 Output slew rate control disabled for port C bit n.
1 Output slew rate control enabled for port C bit n.
MC9S08EL32 Series and MC9S08SL16 Series Data Sheet, Rev. 3
92
Freescale Semiconductor