mc68hc908qf4 Freescale Semiconductor, Inc, mc68hc908qf4 Datasheet - Page 85

• Manufacturer Part Number: mc68hc908qf4
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

9.7.2 Keyboard Interrupt Enable Register
MC68HC908QF4 — Rev. 1.0
MOTOROLA
NOTE:
IMASKK— Keyboard Interrupt Mask Bit
MODEK — Keyboard Triggering Sensitivity Bit
The port A keyboard interrupt enable register (KBIER) enables or disables each
port A pin or auto wakeup to operate as a keyboard interrupt input.
KBIE5–KBIE0 — Port A Keyboard Interrupt Enable Bits
AWUIE bit is not used in conjunction with the keyboard interrupt feature. To see a
description of this bit, see
Writing a 1 to this read/write bit prevents the output of the keyboard interrupt
mask from generating interrupt requests on port A or auto wakeup. Reset clears
the IMASKK bit.
This read/write bit controls the triggering sensitivity of the keyboard interrupt
pins on port A and auto wakeup. Reset clears MODEK.
Address: $001B
Each of these read/write bits enables the corresponding keyboard interrupt pin
on port A to latch interrupt requests. Reset clears the keyboard interrupt enable
register.
Reset:
Read:
Write:
1 = Keyboard interrupt requests masked
0 = Keyboard interrupt requests not masked
1 = Keyboard interrupt requests on falling edges and low levels
0 = Keyboard interrupt requests on falling edges only
1 = KBIx pin enabled as keyboard interrupt pin
0 = KBIx pin not enabled as keyboard interrupt pin
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 9-5. Keyboard Interrupt Enable Register (KBIER)
Bit 7
0
0
Keyboard Interrupt Module (KBI)
Go to: www.freescale.com
= Unimplemented
AWUIE
6
0
Section 4. Auto Wakeup Module
KBIE5
5
0
KBIE4
4
0
KBIE3
3
0
Keyboard Interrupt Module (KBI)
KBIE2
2
0
Input/Output Registers
(AWU).
KBIE1
1
0
Data Sheet
KBIE0
Bit 0
0
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