MC9S12E128CFUE Datasheet, PDF (133/606 Pages) Freescale Semiconductor, Inc – MC9S12E128 Data Sheet

3.3.1.5
Chapter 3 Port Integration Module (PIM9E128V1)
Port AD Pull Device Enable Register (PERAD)
7
R
PERAD15
W
Reset
0
6
PERAD14
0
5
PERAD13
0
4
PERAD12
0
3
PERAD11
0
2
PERAD10
0
1
PERAD9
0
0
PERAD8
0
7
R
PERAD7
W
6
PERAD6
5
PERAD5
4
PERAD4
3
PERAD3
2
PERAD2
1
PERAD1
0
PERAD0
Reset
0
0
0
0
0
0
0
0
Figure 3-6. Port AD Pull Device Enable Register (PERAD)
Read: Anytime. Write: Anytime.
This register configures whether a pull-up or a pull-down device is activated on configured input pins. If
a pin is configured as output, the corresponding Pull Device Enable Register bit has no effect.
Table 3-5. PERAD Field Descriptions
Field
15:0
Pull Device Enable Port AD
PERAD[15:0 0 Pull-up or pull-down device is disabled.
]
1 Pull-up or pull-down device is enabled.
Description
MC9S12E128 Data Sheet, Rev. 1.07
Freescale Semiconductor
133