MC68HC08JK8CP FREESCALE [Freescale Semiconductor, Inc], MC68HC08JK8CP Datasheet - Page 7

• Manufacturer Part Number: MC68HC08JK8CP
• Description: Addendum to MC68HC908JL8 Technical Data
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

AMENDMENTS TO MC68HC908JL8/D, REV. 2
Keyboard Interrupt
Computer Operating
Properly (COP)
KBI0
KBI7
TO PULLUP ENABLE
TO PULLUP ENABLE
NOTE:
To prevent false interrupts, user should use software
to debounce keyboard interrupt inputs.
KBIE0
KBIE7
From:
.
.
.
To:
Page 243, Figure 15-2. Keyboard Interrupt Block Diagram — Replace with
the following block diagram:
Page 254, 16.8.2 Stop Mode — Replace the two paragraphs:
Stop mode turns off the ICLK input to the COP if the STOP_ICLKDIS bit is set
in configuration register 2 (CONFIG2). Service the COP immediately before
entering or after exiting stop mode to ensure a full COP timeout period after
entering or exiting stop mode.
After reset, the STOP_ICLKDIS bit is clear by default and ICLK is enabled
during stop mode.
Stop mode turns off the ICLK input to the COP and clears the COP prescaler.
Service the COP immediately before entering or after exiting stop mode to
ensure a full COP timeout period after entering or exiting stop mode.
To prevent inadvertently turning off the COP with a STOP instruction, a
configuration option is available that disables the STOP instruction. When the
STOP bit in the configuration register has the STOP instruction is disabled,
execution of a STOP instruction results in an illegal opcode reset.
Freescale Semiconductor, Inc.
Addendum to MC68HC908JL8 Technical Data
For More Information On This Product,
MODEK
Go to: www.freescale.com
V
DD
D
CK
CLR
Q
INTERRUPT FF
KEYBOARD
RESET
ACKK
AMENDMENTS TO MC68HC908JL8/D, REV. 2
VECTOR FETCH
INTERNAL BUS
DECODER
IMASKK
SYNCHRONIZER
KEYF
HC908JL8AD/D
KEYBOARD
INTERRUPT
REQUEST