Chapter 2 Port Integration Module (S12XEP100PIMV1)
MC9S12XE-Family Reference Manual , Rev. 1.19
172
Freescale Semiconductor
2.3.98
Port L Polarity Select Register (PPSL)
2.3.99
Port L Wired-Or Mode Register (WOML)
Address 0x0375
Access: User read/write
(1)
1. Read: Anytime.
Write: Anytime.
7
6
5
4
3
2
1
0
R
PPSL7
PPSL6
PPSL5
PPSL4
PPSL3
PPSL2
PPSL1
PPSL0
W
Reset
0
0
0
0
0
0
0
0
Figure 2-96. Port L Polarity Select Register (PPSL)
Table 2-93. PPSL Register Field Descriptions
Field
Description
7-0
PPSL
Port L pull device select
—Determine pull device polarity on input pins
This register selects whether a pull-down or a pull-up device is connected to the pin.
1 A pull-down device is connected to the associated pin, if enabled and if the pin is used as input.
0 A pull-up device is connected to the associated pin, if enabled and if the pin is used as input.
Address 0x0376
Access: User read/write
(1)
1. Read: Anytime.
Write: Anytime.
7
6
5
4
3
2
1
0
R
WOML7
WOML6
WOML5
WOML4
WOML3
WOML2
WOML1
WOML0
W
Reset
0
0
0
0
0
0
0
0
Figure 2-97. Port L Wired-Or Mode Register (WOML)
Table 2-94. WOML Register Field Descriptions
Field
Description
7-0
WOML
Port L wired-or mode
—Enable wired-or functionality
This register configures the output pins as wired-or. If enabled the output is driven active low only (open-drain). A
logic level of “1” is not driven.This allows a multipoint connection of several serial modules. These bits have no
influence on pins used as inputs.
1 Output buffers operate as open-drain outputs.
0 Output buffers operate as push-pull outputs.
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
S12XE
products
in
208
MAPBGA
packages