DEMO9S12XEP100 Freescale Semiconductor, DEMO9S12XEP100 Datasheet - Page 145

• Manufacturer Part Number: DEMO9S12XEP100
• Description: BOARD DEMO FOR MC9S12XEP100
• Manufacturer: Freescale Semiconductor
• Type: MCUr

Specifications of DEMO9S12XEP100

• Contents: Board, Cables, CD
• Processor To Be Evaluated: MC9S12XEP100
• Data Bus Width: 16 bit
• Interface Type: RS-232
• Silicon Manufacturer: Freescale
• Core Architecture: S12
• Core Sub-architecture: S12
• Silicon Core Number: MC9S12
• Silicon Family Name: S12XE
• Rohs Compliant: Yes
• For Use With/related Products: MC9S12XEP100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1. Read: Anytime.
1. Read: Anytime.
2.3.50
2.3.51
Freescale Semiconductor
Address 0x025D
Address 0x025E
Write: Anytime.
Write: Anytime.
Read: Anytime.
PPSP
Field
Field
PIEP
Reset
Reset
7-0
7-0
W
W
R
R
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 rising edge on the associated Port P pin sets the associated flag bit in the PIFP register. A pull-down device is
0 A falling edge on the associated Port P pin sets the associated flag bit in the PIFP register.A pull-up device is
Port P interrupt enable—
This register disables or enables on a per-pin basis the edge sensitive external interrupt associated with Port P.
1 Interrupt is enabled.
0 Interrupt is disabled (interrupt flag masked).
PPSP7
PIEP7
Port P Polarity Select Register (PPSP)
Port P Interrupt Enable Register (PIEP)
connected to the associated Port P pin, if enabled by the associated bit in register PERP and if the port is used
as input.
connected to the associated Port P pin, if enabled by the associated bit in register PERP and if the port is used
as input.
0
0
7
7
PPSP6
PIEP6
0
0
6
6
Figure 2-49. Port P Interrupt Enable Register (PIEP)
Figure 2-48. Port P Polarity Select Register (PPSP)
Table 2-46. PPSP Register Field Descriptions
Table 2-47. PPSP Register Field Descriptions
MC9S12XE-Family Reference Manual , Rev. 1.23
PPSP5
PIEP5
0
0
5
5
PPSP4
PIEP4
0
0
4
4
Description
Description
PPSP3
PIEP3
3
0
3
0
Chapter 2 Port Integration Module (S12XEPIMV1)
PPSP2
PIEP2
0
0
2
2
Access: User read/write
Access: User read/write
PPSP1
PIEP1
0
0
1
1
PPSP0
PIEP0
0
0
0
0
145
(1)
(1)