MC68HC08GP32A Datasheet, PDF (89/258 Pages) Freescale Semiconductor, Inc – Microcontrollers

KBD0
TO PULLUP ENABLE
.
.
KB0IE
.
KBD7
TO PULLUP ENABLE
KB7IE
V_DD
CLR
D
Q
CK
MODEK
INTERNAL BUS
ACKK
RESET
VECTOR FETCH
DECODER
KEYF
SYNCHRONIZER
IMASKK
Figure 8-2. Keyboard Module Block Diagram
KEYBOARD
INTERRUPT
REQUEST
Addr.
$001A
$001B
Register Name
Keyboard Status Read:
and Control Register
(INTKBSCR)
Write:
See page 92. Reset:
Keyboard Interrupt Enable Read:
Register
(INTKBIER)
Write:
See page 92. Reset:
Bit 7
0
0
KBIE7
0
6
5
0
0
0
0
KBIE6 KBIE5
0
0
= Unimplemented
4
0
0
KBIE4
0
3
KEYF
0
KBIE3
0
Figure 8-3. I/O Register Summary
2
0
ACKK
0
1
Bit 0
IMASKK MODEK
0
0
KBIE2 KBIE1 KBIE0
0
0
0