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Chapter 15
Keyboard Interrupts (KBI)
15.1 Chip specific KBI information
This device has one KBI modules with up to 8 keyboard interrupt inputs grouped in a
KBI modules available on PTA port.
15.2 Introduction
15.2.1 Features
The KBI features include:
• Up to eight keyboard interrupt pins with individual pin enable bits
• Each keyboard interrupt pin is programmable as:
• falling-edge sensitivity only
• rising-edge sensitivity only
• both falling-edge and low-level sensitivity
• both rising-edge and high-level sensitivity
• One software-enabled keyboard interrupt
• Exit from low-power modes
15.2.2 Modes of Operation
This section defines the KBI operation in:
• Wait mode
• Stop mode
• Background debug mode
NXP Semiconductors
MC9S08SU16 Reference Manual, Rev. 5, 4/2017
235
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