MC68HC08AZ60CFU MOTOROLA [Motorola, Inc], MC68HC08AZ60CFU Datasheet - Page 361

• Manufacturer Part Number: MC68HC08AZ60CFU
• Description: Advance Information
• Manufacturer: MOTOROLA [Motorola, Inc]

I/O Registers
Keyboard Status
and Control
Register
7-kbd
MOTOROLA
Address: $001A
The following registers control and monitor operation of the keyboard
module:
The keyboard status and control register:
Bits 7–4 — Not used
KEYF — Keyboard Flag Bit
Reset:
Read:
Write:
Freescale Semiconductor, Inc.
•
•
•
•
•
•
These read-only bits always read as logic 0s.
This read-only bit is set when a keyboard interrupt is pending. Reset
clears the KEYF bit.
Figure 3. Keyboard Status and Control Register (KBSCR)
For More Information On This Product,
1 = Keyboard interrupt pending
0 = No keyboard interrupt pending
Keyboard status and control register (KBSCR)
Keyboard interrupt enable register (KBIER)
Flags keyboard interrupt requests
Acknowledges keyboard interrupt requests
Masks keyboard interrupt requests
Controls keyboard interrupt triggering sensitivity
Bit 7
0
0
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Keyboard Module (KBD)
= Unimplemented
6
0
0
5
0
0
4
0
0
KEYF
3
0
MC68HC08AZ60 — Rev 1.0
ACKK
2
0
0
Keyboard Module (KBD)
IMASKK
1
0
I/O Registers
MODEK
Bit 0
0
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