MC68HC908KX8 Datasheet, PDF (176/310 Pages) Motorola, Inc – Microcontrollers

Keyboard Interrupt Module (KBI)
13.6 Low-Power Modes
The WAIT and STOP instructions put the MCU in low power-
consumption standby modes.
13.6.1 Wait Mode
The keyboard module remains active in wait mode. Clearing the
IMASKK bit in the keyboard status and control register enables keyboard
interrupt requests to bring the MCU out of wait mode.
13.6.2 Stop Mode
The keyboard module remains active in stop mode. Clearing the
IMASKK bit in the keyboard status and control register enables keyboard
interrupt requests to bring the MCU out of stop mode.
13.7 I/O Registers
Two registers control and monitor operation of the keyboard module:
• Keyboard status and control register, KBSCR
• Keyboard interrupt enable register, KBIER
13.7.1 Keyboard Status and Control Register
The keyboard status and control register (KBSCR):
• Flags keyboard interrupt requests
• Acknowledges keyboard interrupt requests
• Masks keyboard interrupt requests
• Controls keyboard interrupt triggering sensitivity
Technical Data
176
MC68HC908KX8 • MC68HC908KX2 • MC68HC08KX8 — Rev. 1.0
Keyboard Interrupt Module (KBI)
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