MC68HC908LJ12CPB FREESCALE [Freescale Semiconductor, Inc], MC68HC908LJ12CPB Datasheet - Page 368

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MC68HC908LJ12CPB

Manufacturer Part Number
MC68HC908LJ12CPB
Description
8-bit microcontroller units
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
19.6.2 Keyboard Interrupt Enable Register
19.7 Low-Power Modes
19.8 Wait Mode
MC68HC908LJ12
Freescale Semiconductor
Rev. 2.1
Address:
The keyboard interrupt enable register individually enables or disables
the PTA0/KBI0–PTA3/KBI3 and PTD4/KBI4–PTD7/KBI7 pins to operate
as a keyboard interrupt pin.
KBIE7–KBIE0 — Keyboard Interrupt Enable Bits
The WAIT and STOP instructions put the MCU in low power-
consumption standby modes.
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.
Reset:
Read:
Write:
Each of these read/write bits enables the corresponding keyboard
interrupt pin to latch interrupt requests. Reset clears the keyboard
interrupt enable register.
Figure 19-4. Keyboard Interrupt Enable Register (KBIER)
1 = KBIx pin enabled as keyboard interrupt pin
0 = KBIx pin not enabled as keyboard interrupt pin
$001C
KBIE7
Bit 7
0
Keyboard Interrupt Module (KBI)
KBIE6
6
0
KBIE5
5
0
KBIE4
4
0
KBIE3
3
0
Keyboard Interrupt Module (KBI)
KBIE2
2
0
KBIE1
1
0
Technical Data
KBIE0
Bit 0
0
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