mc9s12vr48 Freescale Semiconductor, Inc, mc9s12vr48 Datasheet - Page 78

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

1
1
Port Integration Module (S12VRPIMV2)
2.3.27
2.3.28
78
Address 0x025B
Address 0x025C
Read: Anytime
Write: Anytime
Read: Anytime
Write: Anytime
RDRP
RDRP
Field
Reset
Reset
1-0
2
W
W
R
R
Reduced Drive Register port P — Select reduced drive for output pin
This bit configures the drive strength of the associated output pin as either full or reduced. If a pin is used as input
this bit has no effect. The reduced drive function is independent of which function is being used on a particular pin.
1 Reduced drive selected (approx. 1/10 of the full drive strength)
0 Full drive strength enabled
Reduced Drive Register port P — Select reduced drive for output pin
This bit configures the drive strength of the associated output pin as either full or reduced. If a pin is used as input
this bit has no effect. The reduced drive function is independent of which function is being used on a particular pin.
1 Reduced drive selected (approx. 1/5 of the full drive strength)
0 Full drive strength enabled
Port P Reduced Drive Register (RDRP)
Port P Pull Device Enable Register (PERP)
0
0
0
0
7
7
Figure 2-27. Port P Pull Device Enable Register (PERP)
0
0
0
0
6
6
Figure 2-26. Port P Reduced Drive Register (RDRP)
Table 2-28. RDRP Register Field Descriptions
MC9S12VR Family Reference Manual,
Preliminary - Subject to Change Without Notice
PERP5
5
0
0
5
0
PERP4
0
0
0
4
4
Description
PERP3
0
0
0
3
3
Rev. 2.2
RDRP2
PERP2
0
0
2
2
Freescale Semiconductor
RDRP1
PERP1
Access: User read/write
Access: User read/write
0
0
1
1
RDRP0
PERP0
0
0
0
0
1
1