MC9S08QD2MPS FREESCALE [Freescale Semiconductor, Inc], MC9S08QD2MPS Datasheet - Page 141
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MC9S08QD2MPS
Manufacturer Part Number
MC9S08QD2MPS
Description
8-Bit HCS08 Central Processor Unit (CPU)
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
1.MC9S08QD2MPS.pdf
(202 pages)
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10.3.2
KBIPE contains the pin enable control bits.
10.3.3
KBIES contains the edge select control bits.
Freescale Semiconductor
KBMOD
KBIPEn
KBACK
Field
Field
KBIE
KBF
7:4
7:0
3
2
1
0
Reset:
Reset:
Unused register bits, always read 0.
Keyboard Interrupt Flag — KBF indicates when a keyboard interrupt is detected. Writes have no effect on KBF.
0 No keyboard interrupt detected.
1 Keyboard interrupt detected.
Keyboard Acknowledge — Writing a 1 to KBACK is part of the flag clearing mechanism. KBACK always reads
as 0.
Keyboard Interrupt Enable — KBIE determines whether a keyboard interrupt is requested.
0 Keyboard interrupt request not enabled.
1 Keyboard interrupt request enabled.
Keyboard Detection Mode — KBMOD (along with the KBEDG bits) controls the detection mode of the keyboard
interrupt pins.0Keyboard detects edges only.
1 Keyboard detects both edges and levels.
Keyboard Pin Enables — Each of the KBIPEn bits enable the corresponding keyboard interrupt pin.
0 Pin not enabled as keyboard interrupt.
1 Pin enabled as keyboard interrupt.
W
KBI Pin Enable Register (KBIPE)
W
KBI Edge Select Register (KBIES)
R
R
KBIPE7
0
0
0
7
7
= Unimplemented
KBIPE6
0
0
0
6
Table 10-2. KBISC Register Field Descriptions
6
Table 10-3. KBIPE Register Field Descriptions
Figure 10-3. KBI Status and Control Register
MC9S08QD4 Series MCU Data Sheet, Rev. 3
Figure 10-4. KBI Pin Enable Register
KBIPE5
5
0
0
5
0
KBIPE4
0
0
0
4
4
Description
Description
KBIPE3
KBF
0
0
3
3
KBIPE2
KBACK
0
0
0
2
2
Keyboard Interrupts (S08KBIV2)
KBIPE1
KBIE
0
0
1
1
KBMOD
KBIPE0
0
0
0
0
141
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