mc9s08sg4 Freescale Semiconductor, Inc, mc9s08sg4 Datasheet - Page 85

• Manufacturer Part Number: mc9s08sg4
• Description: 8-bit Microcontroller Family
• Manufacturer: Freescale Semiconductor, Inc

6.6.2.7
6.6.2.8
Freescale Semiconductor
PTBPS[3:0]
PTBES[3:0]
Reset:
Reset:
Field
Field
3:0
3:0
W
W
R
R
Port B Interrupt Pin Selects — Each of the PTBPSn bits enable the corresponding port B interrupt pin.
0 Pin not enabled as interrupt.
1 Pin enabled as interrupt.
Port B Edge Selects — Each of the PTBESn 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 B Interrupt Pin Select Register (PTBPS)
0
0
Port B Interrupt Edge Select Register (PTBES)
0
0
7
7
generation.
Figure 6-17. Port B Interrupt Pin Select Register (PTBPS)
0
0
0
0
6
6
Figure 6-18. Port B Edge Select Register (PTBES)
Table 6-16. PTBPS Register Field Descriptions
Table 6-17. PTBES Register Field Descriptions
MC9S08SG8 MCU Series Data Sheet, Rev. 3
0
0
0
0
5
5
0
0
0
0
4
4
Description
Description
PTBPS3
PTBES3
3
0
3
0
PTBPS2
PTBES2
Chapter 6 Parallel Input/Output Control
0
0
2
2
PTBPS1
PTBES1
0
0
1
1
PTBPS0
PTBES0
0
0
0
0
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