Freescale Semiconductor Demonstration Board for Freescale MC9S12XHY256 Microcontroller DEMO9S12XHY256 DEMO9S12XHY256 Manuale Utente
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DEMO9S12XHY256
Port Integration Module (S12XHYPIMV1)
MC9S12XHY-Family Reference Manual, Rev. 1.04
126
Freescale Semiconductor
2.3.61
PIM Reserved Registers
2.3.62
Port AD Pull Up Enable Register (PER0AD)
2.3.63
Port AD Pull Up Enable Register (PER1AD)
Address 0x0275
Access: User read/write
1
1
Read: Anytime
Write: Anytime
Write: Anytime
7
6
5
4
3
2
1
0
R
0
0
0
0
0
0
0
0
W
Reset
0
0
0
0
0
0
0
0
Figure 2-58. PIM Reserved Register
Address 0x0276
Access: User read/write
1
1
Read: Anytime
Write: Anytime
Write: Anytime
7
6
5
4
3
2
1
0
R
0
0
0
0
PER0AD3
PER0AD2
PER0AD1
PER0AD0
W
Reset
0
0
0
0
0
0
0
0
Figure 2-59. Port AD Pull Up Enable Register (PER0AD)
Table 2-50. PER0AD Register Field Descriptions
Field
Description
3-0
PER0AD
Port AD pull-up enable—Enable pull-up 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.
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
0 Pull device disabled
Address 0x0277
Access: User read/write
1
7
6
5
4
3
2
1
0
R
PER1AD7
PER1AD6
PER1AD5
PER1AD4
PER1AD3
PER1AD2
PER1AD1
PER1AD0
W
Reset
0
0
0
0
0
0
0
0
Figure 2-60. Port AD Pull Up Enable Register (PER1AD)