9S12HY48 View Datasheet(PDF) - Freescale Semiconductor
Part Name
Description
MFG CO.
'9S12HY48' PDF : 790 Pages View PDF
Port Integration Module (S12HYPIMV1)
1 Read: Anytime
Write: Anytime
Table 2-15. RDRT Register Field Descriptions
Field
7-0
RDRT
Description
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 (1/6 of the full drive strength)
0 Full drive strength enabled
2.3.18 Port T Pull Device Enable Register (PERT)
Address 0x0244
R
W
Reset
7
PERT7
1
1 Read: Anytime
Write: Anytime
6
PERT6
5
PERT5
4
PERT4
3
PERT3
2
PERT2
1
1
1
1
1
Figure 2-16. Port T Pull Device Enable Register (PERT)
Access: User read/write1
1
0
PERT1
PERT0
1
1
Table 2-16. PERT Register Field Descriptions
Field
7-0
PERT
Description
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
2.3.19 Port T Polarity Select Register (PPST)
Address 0x0245
R
W
Reset
7
PPST7
1
1 Read: Anytime
Write: Anytime
6
PPST6
5
PPST5
4
PPST4
3
PPST3
2
PPST2
1
1
1
1
1
Figure 2-17. Port T Polarity Select Register (PPST)
Access: User read/write1
1
0
PPST1
PPST0
1
1
MC9S12HY/HA-Family Reference Manual, Rev. 1.02
82
Freescale Semiconductor
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