MC9S12HZ256 Datasheet, PDF (140/692 Pages) Freescale Semiconductor, Inc – HCS12 Microcontrollers

Chapter 4 Port Integration Module (PIM9HZ256V2)
4.3.4.4 Port P Reduced Drive Register (RDRP)
7
R
0
W
6
5
4
3
2
1
0
0
RDRP5
RDRP4
RDRP3
RDRP2
RDRP1
RDRP0
Reset
0
0
0
0
0
0
0
0
= Reserved or Unimplemented
Figure 4-26. Port P Reduced Drive Register (RDRP)
Read:Anytime. Write:Anytime.
This register configures the drive strength of configured output pins as either full or reduced. If a pin is
configured as input, the corresponding Reduced Drive Register bit has no effect.
Table 4-19. RDRP Field Descriptions
Field
Description
5:0
Reduced Drive Port P
RDRP[5:0] 0 Full drive strength at output.
1 Associated pin drives at about 1/3 of the full drive strength.
MC9S12HZ256 Data Sheet, Rev. 2.04
140
Freescale Semiconductor