MC9S12HZ256 Datasheet, PDF (133/692 Pages) Freescale Semiconductor, Inc – HCS12 Microcontrollers

4.3.2.6
Port L Polarity Select Register (PPSL)
Chapter 4 Port Integration Module (PIM9HZ256V2)
7
R
PPSL7
W
6
PPSL6
5
PPSL5
4
PPSL4
3
PPSL3
2
PPSL2
1
PPSL1
0
PPSL0
Reset
1
1
1
1
1
1
1
1
Figure 4-15. Port L Polarity Select Register (PPSL)
Read: Anytime. Write: Anytime.
The Port L Polarity Select Register selects whether a pull-down or a pull-up device is connected to the pin.
The Port L Polarity Select Register is effective only when the corresponding Data Direction Register bit
is set to 0 (input) and the corresponding Pull Device Enable Register bit is set to 1.
Table 4-12. PPSL Field Descriptions
Field
Description
7:0
Pull Select Port L
PPSL[7:0] 0 A pull-up device is connected to the associated port L pin.
1 A pull-down device is connected to the associated port L pin.
MC9S12HZ256 Data Sheet, Rev. 2.04
Freescale Semiconductor
133