S912XET256J2MAL Datasheet, PDF (124/1324 Pages) Freescale Semiconductor, Inc – MC9S12XEP100 Reference Manual Covers MC9S12XE Family

Chapter 2 Port Integration Module (S12XEPIMV1)
2.3.26 Port T Polarity Select Register (PPST)
Address 0x0245
R
W
Reset
7
PPST7
0
1. Read: Anytime.
Write: Anytime.
6
PPST6
5
PPST5
4
PPST4
3
PPST3
2
PPST2
0
0
0
0
0
Figure 2-24. Port T Polarity Select Register (PPST)
Access: User read/write⁽¹⁾
1
0
PPST1
PPST0
0
0
Table 2-25. PPST Register Field Descriptions
Field
7-0
PPST
Description
Port T pull device select—Determine pull device polarity on input pins
This register selects whether a pull-down or a pull-up device is connected to the pin.
1 A pull-down device is connected to the associated pin, if enabled and if the pin is used as input.
0 A pull-up device is connected to the associated pin, if enabled and if the pin is used as input.
2.3.27 PIM Reserved Register
Address 0x0246
7
6
5
4
3
2
R
0
0
0
0
0
0
W
Reset
0
0
0
0
0
0
= Unimplemented or Reserved
1. Read: Always reads 0x00
Write: Unimplemented
Figure 2-25. PIM Reserved Register
Access: User read⁽¹⁾
1
0
0
0
0
0
2.3.28 PIM Reserved Register
Address 0x0247
7
6
5
4
3
2
R
0
0
0
0
0
0
W
Reset
0
0
0
0
0
0
= Unimplemented or Reserved
1. Read: Always reads 0x00
Write: Unimplemented
Figure 2-26. PIM Reserved Register
Access: User read⁽¹⁾
1
0
0
0
0
0
MC9S12XE-Family Reference Manual Rev. 1.25
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