mc9s12ne64 Freescale Semiconductor, Inc, mc9s12ne64 Datasheet - Page 133

• Manufacturer Part Number: mc9s12ne64
• Description: Hcs12 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

3.3.2.6.5
Read:Anytime.
Write:Anytime.
This register configures whether a pull-up or a pull-down device is activated, if the port is used as input or
as output in wired-or (open drain) mode. These bits have no effect if the port is used as push-pull output.
Out of reset a pull-up device is enabled.
PERL[6:0] — Pull Device Enable Port L
3.3.2.6.6
Read:Anytime.
Write:Anytime.
This register selects whether a pull-down or a pull-up device is connected to the pin.
PPSL[6:0] — Pull Select Port L
Freescale Semiconductor
1 = Either a pull-up or pull-down device is enabled.
0 = Pull-up or pull-down device is disabled.
1 = A pull-down device is connected to the associated port L pin, if enabled by the associated bit in
0 = A pull-up device is connected to the associated port L pin, if enabled by the associated bit in
Module Base + $2C
Module Base + $2D
Reset:
Reset:
Read:
Read:
Write:
Write:
register PERL and if the port is used as input.
register PERL and if the port is used as input or as wired-or output.
Pull Device Enable Register (PERL)
Polarity Select Register (PPSL)
Bit 7
Bit 7
—
—
0
0
Figure 3-43. Port L Pull Device Enable Register (PERL)
= Reserved or unimplemented
= Reserved or unimplemented
PERL6
PPSL6
Figure 3-44. Port L Polarity Select Register (PPSL)
6
1
6
0
MC9S12NE64 Data Sheet, Rev. 1.1
PERL5
PPSL5
5
1
5
0
PERL4
PPSL4
4
1
4
0
PERL3
PPSL3
3
1
3
0
PERL2
PPSL2
2
1
2
0
Memory Map and Register Descriptions
PERL1
PPSL1
1
1
1
0
PERL0
PPSL0
Bit 0
Bit 0
1
0
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