mc68hc11k4vfu4 Freescale Semiconductor, Inc, mc68hc11k4vfu4 Datasheet - Page 26
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mc68hc11k4vfu4
Manufacturer Part Number
mc68hc11k4vfu4
Description
8-bit Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC11K4VFU4.pdf
(80 pages)
- Current page: 26 of 80
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26
MOTOROLA
Notice that the bootloader routine checks the EPROM to see if it contains any data. The presence of
data causes the routine to stay in a loop. At this time, devices with the security enhancement are only
available as one-time-programmable (OTP) MCUs in non-windowed packages. Once they have been
programmed and secured, they will not function in bootstrap mode.
For more information refer to M68HC11 Reference Manual (M68HC11RM/AD).
• Output $FF on SCI transmitter.
• Erase EEPROM array.
• Verify that EEPROM has been erased. If it has not, repeat erase procedure.
• Write $FF to every location in RAM.
• Check EPROM for data. If data is present, stay in loop. Otherwise proceed.
• Erase the CONFIG register.
• Continue executing bootloader routine.
M68HC11 K Series
MC6HC11KTS/D
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