Chapter 2 Port Integration Module (S12XEP100PIMV1)
MC9S12XE-Family Reference Manual , Rev. 1.19
Freescale Semiconductor
159
2.3.76
Port AD0 Pull Up Enable Register 1 (PER1AD0)
2.3.77
Port AD1 Data Register 0 (PT0AD1)
Address 0x0277
Access: User read/write
(1)
1. Read: Anytime.
Write: Anytime.
7
6
5
4
3
2
1
0
R
PER1AD07
PER1AD06
PER1AD05
PER1AD04
PER1AD03
PER1AD02
PER1AD01
PER1AD00
W
Reset
0
0
0
0
0
0
0
0
Figure 2-74. Port AD0 Pull Up Enable Register 1 (PER1AD0)
Table 2-72. PER1AD0 Register Field Descriptions
Field
Description
7-0
PER1AD0
Port AD0 pull device enable
—Enable pull devices on input pins
These bits configure whether a pull device is activated, if the associated pin is used as an input. This bit has no effect
if the pin is used as an output. Out of reset no pull device is enabled.
1 Pull device enabled.
0 Pull device disabled.
Address 0x0278
Access: User read/write
(1)
1. Read: Anytime.
Write: Anytime.
7
6
5
4
3
2
1
0
R
PT0AD17
PT0AD16
PT0AD15
PT0AD14
PT0AD13
PT0AD12
PT0AD11
PT0AD10
W
Altern.
Function
AN15
AN14
AN13
AN12
AN11
AN10
AN9
AN8
Reset
0
0
0
0
0
0
0
0
Figure 2-75. Port AD1 Data Register 0 (PT0AD1)
Table 2-73. PT0AD1 Register Field Descriptions
Field
Description
7-0
PT0AD1
Port AD1 general purpose input/output data
—Data Register
This register is associated with ATD1 analog inputs AN[15:8] on PAD[31:24], respectively.
When not used with the alternative function, this pin can be used as general purpose I/O.
If the associated data direction bits of these pins are set to 1, a read returns the value of the port register, otherwise
the buffered pin input state is read.
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