Microcontrollers Data Sheet

Advance Information MC68HC(7)08KH12 — Rev. 1.1 234 Freescale Semiconductor
15.6 Port-F Keyboard Interrupt Block Diagram
Figure 15-7. Port-F Keyboard Interrupt Block Diagram
KBFIE0
KBFIE7
.
.
.
DQ
CK
CLR
V
DD
MODEF
IMASKF
KEYBOARD
INTERRUPT FF
VECTOR FETCH
DECODER
ACKF
INTERNAL BUS
RESET
KBF3
KBF0
SYNCHRONIZER
KEYFF
Port-F
Keyboard
Interrupt
Request
PFPE0
PFPE7
TO PULLUP ENABLE
TO PULLUP ENABLE