sc9s12hy64j0vllr Freescale Semiconductor, Inc, sc9s12hy64j0vllr Datasheet - Page 94

• Manufacturer Part Number: sc9s12hy64j0vllr
• Description: S12 Microcontrollers Mcu 16-bit Hcs12 Cisc 32kb Flash 5v Tray
• Manufacturer: Freescale Semiconductor, Inc

1
1
Port Integration Module (S12HYPIMV1)
2.3.35
2.3.36
94
Address 0x025C
Address 0x025D
Read: Anytime.
Write: Anytime.
Read: Anytime.
Write: Anytime.
PERP
PPSP
Field
Field
Reset
Reset
7-0
7-0
W
W
R
R
Port P pull device enable—Enable pull devices on input pins
These bits configure whether a pull device is activated, if the associated pin is used as an input. This bit has no effect
if the pin is used as an output. Out of reset all pull device is enabled.
1 Pull device enabled.
0 Pull device disabled.
Port P pull device select—Determine pull device polarity on input pins
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.
1 A pull-down device is connected to the associated Port P pin, if enabled by the associated bit in register PERP and
0 A pull-up device is connected to the associated Port P pin, if enabled by the associated bit in register PERP and
PERP7
PPSP7
Port P Pull Device Enable Register (PERP)
Port P Polarity Select Register (PPSP)
if the port is used as input.
if the port is used as input.
1
1
7
7
PERP6
PPSP6
Figure 2-33. Port P Pull Device Enable Register (PERP)
1
1
6
6
Figure 2-34. Port P Polarity Select Register (PPSP)
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
Table 2-31. PERP Register Field Descriptions
Table 2-32. PPSP Register Field Descriptions
PERP5
PPSP5
1
1
5
5
PERP4
PPSP4
1
1
4
4
Description
Description
PERP3
PPSP3
3
1
3
1
PERP2
PPSP2
1
1
2
2
Freescale Semiconductor
PERP1
PPSP1
Access: User read/write
Access: User read/write
1
1
1
1
PERP0
PPSP0
1
1
0
0
1
1