MC9S08SG32E1JTGR FREESCALE [Freescale Semiconductor, Inc], MC9S08SG32E1JTGR Datasheet - Page 84

• Manufacturer Part Number: MC9S08SG32E1JTGR
• Description: HCS08 Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Chapter 6 Parallel Input/Output Control
6.6.1.7
6.6.1.8
84
PTAPS[3:0]
PTAES[3:0]
Reset:
Reset:
Field
Field
3:0
3:0
W
W
R
R
Port A Interrupt Pin Selects — Each of the PTAPSn bits enable the corresponding port A interrupt pin.
0 Pin not enabled as interrupt.
1 Pin enabled as interrupt.
Port A Edge Selects — Each of the PTAESn bits 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 A pull-up device is connected to the associated pin and detects falling edge/low level for interrupt generation.
1 A pull-down device is connected to the associated pin and detects rising edge/high level for interrupt
Port A Interrupt Pin Select Register (PTAPS)
0
0
Port A Interrupt Edge Select Register (PTAES)
0
0
7
7
generation.
Figure 6-9. Port A Interrupt Pin Select Register (PTAPS)
0
0
0
0
6
6
Figure 6-10. Port A Edge Select Register (PTAES)
Table 6-8. PTAPS Register Field Descriptions
Table 6-9. PTAES Register Field Descriptions
0
0
0
0
5
5
MC9S08SG32 Data Sheet, Rev. 7
0
0
0
0
4
4
Description
Description
PTAPS3
PTAES3
3
0
3
0
PTAPS2
PTAES2
0
0
2
2
PTAPS1
PTAES1
Freescale Semiconductor
0
0
1
1
PTAPS0
PTAES0
0
0
0
0