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M68ICS08GR датащи(PDF) 177 Page - Freescale Semiconductor, Inc

номер детали M68ICS08GR
подробное описание детали  M68HC08 Microcontrollers
PDF  408 Pages
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производитель  FREESCALE [Freescale Semiconductor, Inc]
домашняя страница  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

M68ICS08GR датащи(HTML) 177 Page - Freescale Semiconductor, Inc

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Keyboard Interrupt (KBI)
Functional Description
MC68HC908GR8 — Rev 4.0
Technical Data
MOTOROLA
Keyboard Interrupt (KBI)
177
Figure 13-1. Keyboard Module Block Diagram
KB0IE
KB3IE
.
.
.
KEYBOARD
INTERRUPT
DQ
CK
CLR
VDD
MODEK
IMASKK
KEYBOARD
INTERRUPT FF
REQUEST
VECTOR FETCH
DECODER
ACKK
INTERNAL BUS
RESET
TO PULLUP
KBD3
KBD0
TO PULLUP
SYNCHRONIZER
KEYF
ENABLE
ENABLE
Addr.
Register Name
Bit 7
654321
Bit 0
$001A
Keyboard Status
and Control Register
(INTKBSCR)
Read:
0000
KEYF
0
IMASKK
MODEK
Write:
ACKK
Reset:
00000000
$001B
Keyboard Interrupt Enable
Register (INTKBIER)
Read:
KBIE3
KBIE2
KBIE1
KBIE0
Write:
Reset:
0000
= Unimplemented
Figure 13-2. I/O Register Summary
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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