
Chapter 4 Port Integration Module (PIM9HZ256V2)
MC9S12HZ256 Data Sheet, Rev. 2.05
Freescale Semiconductor
159
4.3.8.6
Port V Polarity Select Register (PPSV)
Read: Anytime. Write: Anytime.
The Port V Polarity Select Register selects whether a pull-down or a pull-up device is connected to the pin.
The Port V 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.
76543210
R
PPSV7
PPSV6
PPSV5
PPSV4
PPSV3
PPSV2
PPSV1
PPSV0
W
Reset
0
00000
Figure 4-54. Port V Polarity Select Register (PPSV)
Table 4-39. PPSV Field Descriptions
Field
Description
7:0
PPSV[7:0]
Pull Select Port V
0 A pull-up device is connected to the associated port V pin.
1 A pull-down device is connected to the associated port V pin.