mc68hc908qf4 Freescale Semiconductor, Inc, mc68hc908qf4 Datasheet - Page 79

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

9.1 Introduction
9.2 Features
MC68HC908QF4 — Rev. 1.0
MOTOROLA
$001A
$001B
Addr.
Data Sheet — MC68HC908QF4
Keyboard Status and Control
Keyboard Interrupt Enable
Register Name
Register (KBSCR)
Register (KBIER)
See page 84.
See page 85.
The keyboard interrupt module (KBI) provides six independently maskable external
interrupts, which are accessible via the PTA0–PTA5 pins.
Features of the keyboard interrupt module include:
Figure 9-1
•
•
•
•
Reset:
Reset:
Read:
Read:
Write:
Write:
Six keyboard interrupt pins with separate keyboard interrupt enable bits and
one keyboard interrupt mask
Software configurable pullup device if input pin is configured as input port bit
Programmable edge-only or edge and level interrupt sensitivity
Exit from low-power modes
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 9-1. KBI I/O Register Summary
provides a summary of the input/output (I/O) registers
Bit 7
0
0
0
0
Keyboard Interrupt Module (KBI)
Go to: www.freescale.com
= Unimplemented
AWUIE
Section 9. Keyboard Interrupt Module (KBI)
6
0
0
0
KBIE5
5
0
0
0
KBIE4
4
0
0
0
KBIE3
KEYF
3
0
0
KBIE2
ACKK
2
0
0
0
IMASKK
KBIE1
1
0
0
Data Sheet
MODEK
KBIE0
Bit 0
0
0
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