mc68hc908lb8 Freescale Semiconductor, Inc, mc68hc908lb8 Datasheet - Page 209

• Manufacturer Part Number: mc68hc908lb8
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
•
•
If $FFFE and $FFFF contain $FF (erased state):
–
–
If $FFFE and $FFFF contain $FF (erased state):
–
–
The external clock is 9.8304 MHz
IRQ = V
IRQ = V
The bus clock generated by the internal oscillator — 4 MHz bus
For entry into normal monitor mode, the IRQ pin must be at V
V
Location $FFC0 is programmed at the factory with an oscillator trim value
that will allow communication at 9600 baud. Erasing this location may
prevent communication with the device.
DD
DD
SS
is applied to the device.
(internal oscillator is selected, no external clock required)
(this can be implemented through the internal IRQ pullup)
MC68HC908LB8 Data Sheet, Rev. 1
NOTE
NOTE
TST
before
Monitor Module (MON)
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