mc9s12vr48 Freescale Semiconductor, Inc, mc9s12vr48 Datasheet - Page 88

• Manufacturer Part Number: mc9s12vr48
• Description: S12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

1
1
Port Integration Module (S12VRPIMV2)
2.3.42
2.3.43
88
Address 0x0279
Address 0x027B
PER1AD
PPS1AD
Read: Anytime
Write: Anytime
Read: Anytime
Write: Anytime
Field
Field
Reset
Reset
5-0
5-0
W
W
R
R
Pull device Enable Register 1 port AD — Enable pull device on input pin
This bit controls whether a pull device on the associated port input pin is active. If a pin is used as output this bit has
no effect. The polarity is selected by the related polarity select register bit.
1 Pull device enabled
0 Pull device disabled
Pull device Polarity Select register 1 port AD — Configure pull device polarity and pin interrupt edge polarity on
input pin
This bit selects a pullup or a pulldown device if enabled on the associated port input pin.
This bit also selects the polarity of the active pin interrupt edge.
1 A pulldown device is selected; rising edge selected
0 A pullup device is selected; falling edge selected
Port AD Pull Enable Register (PER1AD)
Port AD Polarity Select Register (PPS1AD)
0
0
0
0
7
7
Figure 2-42. Port AD Polarity Select Register (PPS1AD)
Figure 2-41. Port AD Pullup Enable Register (PER1AD)
0
0
0
0
6
6
Table 2-44. PER1AD Register Field Descriptions
Table 2-45. PPS1AD Register Field Descriptions
MC9S12VR Family Reference Manual,
Preliminary - Subject to Change Without Notice
PER1AD5
PPS1AD5
5
0
5
0
PER1AD4
PPS1AD4
0
0
4
4
Description
Description
PER1AD3
PPS1AD3
0
0
3
3
Rev. 2.2
PER1AD2
PPS1AD2
0
0
2
2
PER1AD1
PPS1AD1
Freescale Semiconductor
Access: User read/write
Access: User read/write
0
0
1
1
PER1AD0
PPS1AD0
0
0
0
0
1
1