MC68HC08AZ60ACFU MOTOROLA [Motorola, Inc], MC68HC08AZ60ACFU Datasheet - Page 397

• Manufacturer Part Number: MC68HC08AZ60ACFU
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

TO PULLUP ENABLE
TO PULLUP ENABLE
Keyboard Status and Control Reg-
Keyboard Interrupt Enable Regis-
KBD0
KBD4
Register Name
KB0IE
KB4IE
ister (KBSCR)
ter (KBIER)
.
.
.
Figure 22-1. Keyboard Module Block Diagram
Table 22-1. I/O Register Address Summary
Reset:
Reset:
Read:
Write:
Read:
Write:
Register
Address
Figure 22-2. I/O Register Summary
Bit 7
0
0
0
0
MODEK
= Unimplemented
KBSCR
V
6
0
0
0
0
$001A
DD
D
CK
CLR
5
0
0
0
0
Q
INTERRUPT FF
KEYBOARD
KBIE4
4
0
0
0
KBIER
$001B
RESET
ACKK
KBIE3
KEYF
3
0
0
VECTOR FETCH
INTERNAL BUS
KBIE2
ACKK
DECODER
IMASKK
2
0
0
0
SYNCHRONIZER
IMASKK
KBIE1
1
0
0
KEYF
MODEK
KBIE0
Bit 0
0
0
KEYBOARD
INTERRUPT
REQUEST