MC9S12HZ256 Datasheet, PDF (150/692 Pages) Freescale Semiconductor, Inc – HCS12 Microcontrollers

Chapter 4 Port Integration Module (PIM9HZ256V2)
4.3.6.4 Port T Reduced Drive Register (RDRT)
R
W
Reset
7
RDRT7
0
6
RDRT6
5
RDRT5
4
RDRT4
3
RDRT3
2
RDRT2
0
0
0
0
0
Figure 4-40. Port T Reduced Drive Register (RDRT)
1
RDRT1
0
0
RDRT0
0
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 4-29. RDRT Field Descriptions
Field
Description
7:0
Reduced Drive Port T
RDRT[7:0] 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
150
Freescale Semiconductor