Datasheet

Port Integration Module (S12XSPIMV1)
S12XS Family Reference Manual, Rev. 1.13
Freescale Semiconductor 119
2.3.71 Port AD0 Reduced Drive Register 1 (RDR1AD0)
2.3.72 Port AD0 Pull Up Enable Register 0 (PER0AD0)
Address 0x0275 Access: User read/write
1
1
Read: Anytime
Write: Anytime
76543210
R
RDR1AD07 RDR1AD06 RDR1AD05 RDR1AD04 RDR1AD03 RDR1AD02 RDR1AD01 RDR1AD00
W
Reset 00000000
Figure 2-69. Port AD0 Reduced Drive Register 1 (RDR1AD0)
Table 2-68. RDR1AD0 Register Field Descriptions
Field Description
7-0
RDR1AD0
Port AD0 reduced drive—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
Address 0x0276 Access: User read/write
1
1
Read: Anytime
Write: Anytime
76543210
R
PER0AD07 PER0AD06 PER0AD05 PER0AD04 PER0AD03 PER0AD02 PER0AD01 PER0AD00
W
Reset 00000000
Figure 2-70. Port AD0 Pull Device Up Register 0 (PER0AD0)
Table 2-69. PER0AD0 Register Field Descriptions
Field Description
7-0
PER0AD0
Port AD0 pull device enable—Enable pull-up 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