XC68HC705JJ7 Motorola, XC68HC705JJ7 Datasheet - Page 189
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XC68HC705JJ7
Manufacturer Part Number
XC68HC705JJ7
Description
MICROCONTROLLER
Manufacturer
Motorola
Datasheet
1.XC68HC705JJ7.pdf
(242 pages)
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13.4 EPROM Programming
13.4.1 MOR Programming
MC68HC705JJ7 • MC68HC705JP7 — REV 4
MOTOROLA
NOTE:
NOTE:
A programming board is available from Motorola to download to the
on-chip EPROM/OTPROM using the factory-provided programming
software. Factory-provided software for programming the PEPROM is
available on the World Wide Web at:
The programming software copies to the 6144-byte space located at
EPROM addresses $0700–$1EFF and to the 16-byte space at
addresses $1FF0–$1FFF which includes the mask option register at
address $1FF1, and the security bit at address $1FF0.
To program the EPROM/OTPROM, MOR, or EPMSEC bits properly, the
V
The contents of the MOR should be programmed using the programmer
board. To program any bits in the MOR, the desired bit states must be
written to the MOR address and then the MPGM bit in the EPROG
register must be used. The following sequence will program the MOR:
Once the MOR bits have been programmed, some of the options may
experience glitches in operation after removal of the programming
voltage. It is recommended that the part be reset before trying to verify
the contents of the user EPROM or the MOR itself.
The contents of the EPROM or the MOR cannot be accessed if the
EPMSEC bit in the COPR register has been set.
DD
1. Write the desired data to the MOR location ($1FF1).
2. Apply the programming voltage to the IRQ/V
3. Set the MPGM bit in the EPROG.
4. Wait for the programming time, t
5. Clear the MPGM bit in the EPROG.
6. Remove the programming voltage from the IRQ/V
http://www.motorola.com/mcu/
voltage must be greater than 4.5 volts.
EPROM/OTPROM
MPGM
.
PP
EPROM Programming
pin.
Advance Information
EPROM/OTPROM
PP
pin.
189
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