mc9s12e256 Freescale Semiconductor, Inc, mc9s12e256 Datasheet - Page 139

• Manufacturer Part Number: mc9s12e256
• Description: Hcs12 Microcontrollers 16-bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

3.3.2.6
Read: Anytime. Write: Anytime.
The Port M Polarity Select Register selects whether a pull-down or a pull-up device is connected to the
pin. The Port M Polarity Select Register is effective only when the corresponding Data Direction Register
bit is set to 0 (input) and the corresponding Pull Device Enable Register bit is set to 1.
Freescale Semiconductor
PPSM[7:3,
7:3, 1:0
Reset
Field
1:0]
W
R
PPSM7
Pull Select Port M
0 A pull-up device is connected to the associated port M pin.
1 A pull-down device is connected to the associated port M pin.
Port M Polarity Select Register (PPSM)
0
7
= Reserved or Unimplemented
PPSM6
0
6
Figure 3-15. Port M Polarity Select Register (PPSM)
Table 3-12. PPSM Field Descriptions
PPSM5
MC9S12E256 Data Sheet, Rev. 1.08
0
5
PPSM4
0
4
Description
PPSM3
3
0
Chapter 3 Port Integration Module (PIM9E256V1)
0
0
2
PPSM1
0
1
PPSM0
0
0
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