mc9s12c32mpb16 Freescale Semiconductor, Inc, mc9s12c32mpb16 Datasheet - Page 99

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

2.3.2.5.5
Read: Anytime.
Write: Anytime.
2.3.2.5.6
Read: Anytime.
Write: Anytime.
Freescale Semiconductor
Module Base + 0x002C
Module Base + 0x002D
PERJ[7:6]
PPSJ[7:6]
Reset
Reset
Field
Field
7–6
7–6
W
W
R
R
PERJ7
PPSJ7
Reduced Drive Port J — This register configures whether a pull-up or a pull-down device is activated, if the port
is used as input or as wired-or output. This bit has no effect if the port is used as push-pull output.
0 Pull-up or pull-down device is disabled.
1 Either a pull-up or pull-down device is enabled.
Reduced Drive Port J — This register serves a dual purpose by selecting the polarity of the active interrupt edge
as well as selecting a pull-up or pull-down device if enabled.
0 Falling edge on the associated port J pin sets the associated flag bit in the PIFJ register.
1 Rising edge on the associated port J pin sets the associated flag bit in the PIFJ register.
0
0
7
7
A pull-up device is connected to the associated port J pin, if enabled by the associated bit in register PERJ
and if the port is used as general purpose input.
A pull-down device is connected to the associated port J pin, if enabled by the associated bit in register PERJ
and if the port is used as input.
Port J Pull Device Enable Register (PERJ)
Port J Polarity Select Register (PPSJ)
= Unimplemented or Reserved
= Unimplemented or Reserved
PERJ6
PPSJ6
Figure 2-36. Port J Pull Device Enable Register (PERJ)
0
0
6
6
Figure 2-37. Port J Polarity Select Register (PPSJ)
Table 2-30. PERJ Field Descriptions
Table 2-31. PPSJ Field Descriptions
MC9S12C-Family / MC9S12GC-Family
—
—
0
0
5
5
Rev 01.23
—
—
0
0
4
4
Description
Description
Chapter 2 Port Integration Module (PIM9C32) Block Description
—
—
0
0
3
3
—
—
0
0
2
2
—
—
0
0
1
1
—
—
0
0
0
0
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