XC68HC08KH12 Motorola, XC68HC08KH12 Datasheet - Page 226

• Manufacturer Part Number: XC68HC08KH12
• Description: MICROCONTROLLER
• Manufacturer: Motorola

Keyboard Interrupt Module (KBI)
15.4.3.2 Port-D Keyboard Interrupt Enable Register
Advance Information
226
Address: $000D
Figure 15-3. Port-D Keyboard Interrupt Enable Register (KBDIER)
KEYDF — Port-D Keyboard Flag Bit
ACKD — Port-D Keyboard Acknowledge Bit
IMASKD — Port-D Keyboard Interrupt Mask Bit
MODED — Port-D Keyboard Triggering Sensitivity Bit
The port-D keyboard interrupt enable register enables or disables each
port-D pin to operate as a keyboard interrupt pin.
Reset:
Read:
Write:
This read-only bit is set when a keyboard interrupt is pending on
port-D. Reset clears the KEYDF bit.
Writing a logic 1 to this write-only bit clears the keyboard interrupt
request on port-D. ACKD always reads as logic 0. Reset clears
ACKD.
Writing a logic 1 to this read/write bit prevents the output of the
keyboard interrupt mask from generating interrupt requests on port-D.
Reset clears the IMASKD bit.
This read/write bit controls the triggering sensitivity of the keyboard
interrupt pins on port-D. Reset clears MODED.
1 = Keyboard interrupt pending
0 = No keyboard interrupt pending
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
KBDIE7
Bit 7
0
Keyboard Interrupt Module (KBI)
KBDIE6
6
0
KBDIE5
5
0
KBDIE4
4
0
KBDIE3
3
0
MC68HC(7)08KH12
KBDIE2
2
0
KBDIE1
1
0
MOTOROLA
—
KBDIE0
Rev. 1.0
Bit 0
0