ROHS MC9S08QE128 Reference Manual page 122

Chapter 6 Parallel Input/Output Control
6.5.3.6 Port C Pull Enable Register (PTCPE)
The port C enable register (PTCPE) enables pull-ups on the corresponding PTC pin. In some cases, a
pull-down device will be enabled if pull-downs are supported by an alternative pin function, such as KBI.
7
R
PTCPE7
W
Reset: 0
Field
7:0 Internal Pull Enable for Port C Bits — Each of these control bits determines if the internal pull-up device is
PTCPE[7:0] 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 device disabled for port C bit n.
1 Internal pull-up device enabled for port C bit n.
6.5.3.7 Port C Slew Rate Enable Register (PTCSE)
7
R
PTCSE7
W
Reset: 0
Field
7:0 Output Slew Rate Enable for Port C Bits — Each of these control bits determines if the output slew rate control
PTCSE[7:0] 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.
122
6 5
PTCPE6 PTCPE5
0 0
Figure 6-18. Internal Pull Enable for Port C Register (PTCPE)
Table 6-16. PTCPE Register Field Descriptions
6 5
PTCSE6 PTCSE5
0 0
Figure 6-19. Slew Rate Enable for Port C Register (PTCSE)
Table 6-17. PTCSE Register Field Descriptions
MC9S08QE128 MCU Series Reference Manual, Rev. 2
4 3
PTCPE4 PTCPE3
0 0
Description
4 3
PTCSE4 PTCSE3
0 0
Description
2 1
PTCPE2 PTCPE1
0 0
2 1
PTCSE2 PTCSE1
0 0
Freescale Semiconductor
0
PTCPE0
0
0
PTCSE0
0