mc9s12c32mpb16 Freescale Semiconductor, Inc, mc9s12c32mpb16 Datasheet - Page 92

• Manufacturer Part Number: mc9s12c32mpb16
• Description: Hcs12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 2 Port Integration Module (PIM9C32) Block Description
2.3.2.3.6
Read: Anytime.
Write: Anytime.
2.3.2.3.7
Read: Anytime.
Write: Anytime.
92
Module Base + 0x0015
Module Base + 0x0016
WOMM[5:0]
PPSM[5:0]
Reset
Reset
Field
Field
5–0
5–0
W
W
R
R
Polarity Select Port M — This register selects whether a pull-down or a pull-up device is connected to the pin.
0 A pull-up device is connected to the associated port M pin, if enabled by the associated bit in register PERM
1 A pull-down device is connected to the associated port M pin, if enabled by the associated bit in register PERM
Wired-OR Mode Port M — This register configures the output pins as wired-or. If enabled the output is driven
active low only (open-drain). A logic level of “1” is not driven. This bit has no influence on pins used as inputs.
0 Output buffers operate as push-pull outputs.
1 Output buffers operate as open-drain outputs.
0
0
0
0
7
7
and if the port is used as input or as wired-or output.
and if the port is used as input.
Port M Polarity Select Register (PPSM)
Port M Wired-OR Mode Register (WOMM)
= Unimplemented or Reserved
= Unimplemented or Reserved
0
0
0
0
6
6
Figure 2-23. Port M Wired-OR Mode Register (WOMM)
Figure 2-22. Port M Polarity Select Register (PPSM)
Table 2-21. WOMM Field Descriptions
Table 2-20. PPSM Field Descriptions
WOMM5
PPSM5
MC9S12C-Family / MC9S12GC-Family
0
0
5
5
WOMM4
PPSM4
Rev 01.23
0
0
4
4
Description
Description
WOMM3
PPSM3
0
0
3
3
WOMM2
PPSM2
0
0
2
2
WOMM1
PPSM1
Freescale Semiconductor
0
0
1
1
WOMM0
PPSM0
0
0
0
0