Datasheet

Port Integration Module (S12XSPIMV1)
S12XS Family Reference Manual, Rev. 1.13
88 Freescale Semiconductor
2.3.22 Port T Pull Device Enable Register (PERT)
2.3.23 Port T Polarity Select Register (PPST)
1
Read: Anytime
Write: Anytime
Table 2-19. RDRT Register Field Descriptions
Field Description
7-0
RDRT
Port T 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 0x0244 Access: User read/write
1
1
Read: Anytime
Write: Anytime
76543210
R
PERT7 PERT6 PERT5 PERT4 PERT3 PERT2 PERT1 PERT0
W
Reset 00000000
Figure 2-20. Port T Pull Device Enable Register (PERT)
Table 2-20. PERT Register Field Descriptions
Field Description
7-0
PERT
Port T 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
Address 0x0245 Access: User read/write
1
1
Read: Anytime
Write: Anytime
76543210
R
PPST7 PPST6 PPST5 PPST4 PPST3 PPST2 PPST1 PPST0
W
Reset 00000000
Figure 2-21. Port T Polarity Select Register (PPST)