Datasheet

Port Integration Module (S12XSPIMV1)
S12XS Family Reference Manual, Rev. 1.13
106 Freescale Semiconductor
2.3.45 Port P Reduced Drive Register (RDRP)
2.3.46 Port P Pull Device Enable Register (PERP)
Address 0x025B Access: User read/write
1
1
Read: Anytime
Write: Anytime
76543210
R
RDRP7 RDRP6 RDRP5 RDRP4 RDRP3 RDRP2 RDRP1 RDRP0
W
Reset 00000000
Figure 2-43. Port P Reduced Drive Register (RDRP)
Table 2-42. RDRP Register Field Descriptions
Field Description
7-0
RDRP
Port P 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 0x025C Access: User read/write
1
1
Read: Anytime
Write: Anytime
76543210
R
PPSP7 PPSP6 PPSP5 PPSP4 PPSP3 PPSP2 PPSP1 PPSP0
W
Reset 00000000
Figure 2-44. Port P Pull Device Enable Register (PERP)
Table 2-43. PERP Register Field Descriptions
Field Description
7-0
PERP
Port P pull device enable—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