mc9s12vr48 Freescale Semiconductor, Inc, mc9s12vr48 Datasheet - Page 79

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

1
1
2.3.29
2.3.30
Freescale Semiconductor
Address 0x025D
Address 0x025E
Read: Anytime
Write: Anytime
Read: Anytime
Write: Anytime
Read: Anytime.
PERP
PPSP
Field
Field
Reset
Reset
5-0
5-0
W
W
R
R
Pull device Enable Register port P — 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 port P — 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
OCIE
Port P Polarity Select Register (PPSP)
Port P Interrupt Enable Register (PIEP)
0
0
0
7
7
0
0
0
0
6
6
Figure 2-29. Port P Interrupt Enable Register (PIEP)
Figure 2-28. Port P Polarity Select Register (PPSP)
Table 2-29. PERP Register Field Descriptions
Table 2-30. PPSP Register Field Descriptions
MC9S12VR Family Reference Manual, Rev. 2.2
Preliminary - Subject to Change Without Notice
PPSP5
PIEP5
5
0
5
0
PPSP4
PIEP4
0
0
4
4
Description
Description
PPSP3
PIEP3
0
0
3
3
PPSP2
PIEP2
Port Integration Module (S12VRPIMV2)
0
0
2
2
PPSP1
Access: User read/write
Access: User read/write
PIEP1
0
0
1
1
PPSP0
PIEP0
0
0
0
0
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