mc9s12xf512 Freescale Semiconductor, Inc, mc9s12xf512 Datasheet - Page 878

• Manufacturer Part Number: mc9s12xf512
• Description: S12x Microcontrollers 16-bit Automotive Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

1. Read: Anytime.
1. Read: Anytime.
Chapter 19 Port Integration Module (S12XFPIMV2)
19.3.49 Port P Pull Device Enable Register (PERP)
19.3.50 Port P Polarity Select Register (PPSP)
878
Address 0x025C
Address 0x025D
Write: Anytime.
Write: Anytime.
RDRP
PERP
Field
Field
Reset
Reset
7-0
7-0
W
W
R
R
Port P reduced drive—Select reduced drive for outputs
This register configures the drive strength of output pins 7 through 0 as either full or reduced. If a pin is used as input
this bit has no effect.
1 Reduced drive selected (1/6 of the full drive strength).
0 Full drive strength enabled.
Port P pull device enable—Enable pull devices on input pins
These bits configure whether a pull device is activated, if the associated pin is used as an input. This bit has no effect
if the pin is used as an output. Out of reset no pull device is enabled.
1 Pull device enabled.
0 Pull device disabled.
PERP7
PPSP7
0
0
7
7
PERP6
PPSP6
Figure 19-47. Port P Pull Device Enable Register (PERP)
0
0
6
6
Figure 19-48. Port P Polarity Select Register (PPSP)
Table 19-43. RDRP Register Field Descriptions
Table 19-44. PERP Register Field Descriptions
MC9S12XF - Family Reference Manual, Rev.1.19
PERP5
PPSP5
0
0
5
5
PERP4
PPSP4
0
0
4
4
Description
Description
PERP3
PPSP3
3
0
3
0
PERP2
PPSP2
0
0
2
2
Access: User read/write
Access: User read/write
Freescale Semiconductor
PERP1
PPSP1
0
0
1
1
PERP0
PPSP0
0
0
0
0
(1)
(1)