MC68HC908LD64 Datasheet, PDF (327/362 Pages) Freescale Semiconductor, Inc – Microcontrollers

Keyboard Interrupt Module (KBI)
Low-Power Modes
21.7.2 Keyboard Interrupt Enable Register
The keyboard interrupt enable register enables or disables each port A
pin to operate as a keyboard interrupt pin.
Address: $004F
Bit 7
6
5
4
3
2
1
Bit 0
Read:
KBIE7
Write:
KBIE6
KBIE5
KBIE4
KBIE3
KBIE2
KBIE1
KBIE0
Reset: 0
0
0
0
0
0
0
0
Figure 21-4. Keyboard Interrupt Enable Register (KBIER)
KBIE7–KBIE0 — Keyboard Interrupt Enable Bits
Each of these read/write bits enables the corresponding keyboard
interrupt pin to latch interrupt requests. Reset clears the keyboard
interrupt enable register.
1 = PTAx/KBIx pin enabled as keyboard interrupt pin
0 = PTAx/KBIx pin not enabled as keyboard interrupt pin
21.8 Low-Power Modes
The WAIT and STOP instructions put the MCU in low-power-
consumption standby modes.
21.8.1 Wait Mode
The keyboard interrupt 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.
21.8.2 Stop Mode
The keyboard interrupt 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.
MC68HC908LD64 — Rev. 3.0
Freescale Semiconductor
Keyboard Interrupt Module (KBI)
Data Sheet
327