XC68HC08KH12 Motorola, XC68HC08KH12 Datasheet - Page 220

• Manufacturer Part Number: XC68HC08KH12
• Description: MICROCONTROLLER
• Manufacturer: Motorola

Keyboard Interrupt Module (KBI)
15.2 Introduction
15.3 Features
Advance Information
220
The keyboard module provides twenty independently maskable external
interrupts which are accessible via PTD7-PTD0, PTE3-PTE0 and
PTF7-PTF0. Though the functionality of the three keyboard interrupts on
the three ports is similar, the implementation is quite different. On port-D,
enabling keyboard interrupt on a pin also enables its internal pull-up
device. On port-E, the pull-up device is control by the PEPEx bit resided
in the Port-E Keyboard Interrupt Enable Register (KBEIER). On port-F,
the pull-up device is control by the PFPEx bit resided in the Port-F
Control Register (PFPER).
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Twenty Keyboard Interrupt Pins with Separate Keyboard Interrupt
Enable Bits and three Keyboard Interrupt Masks.
Hysteresis Buffers
Internal Pull-ups.
Programmable Edge-Only or Edge- and Level- Interrupt Sensitivity
Exit from Low-Power Modes
Keyboard Interrupt Module (KBI)
MC68HC(7)08KH12
MOTOROLA
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Rev. 1.0