Datasheet

Table Of Contents
Port Integration Module
Register Descriptions
MC9S12DP256 — Revision 1.1
Port Integration Module
Port J Polarity
Select Register
(PPSJ)
Read: Anytime.
Write: Anytime.
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.
PPSJ[7:6][1:0] — Polarity Select Port H
1 = Rising edge on the associated port J pin sets the associated
flag bit in the PIFJ register.
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.
0 = Falling edge on the associated port J pin sets the associated
flag bit in the PIFJ register.
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, general purpose output in
wired-or configuration or as IIC port.
Address Offset: $002D
Bit 7 654321Bit 0
Read:
PPSJ7 PPSJ6
0000
PPSJ1 PPSJ0
Write:
Reset: 00000000
= Reserved or unimplemented
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