AN1746 データシートの表示（PDF） - Freescale Semiconductor

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AN1746

Migrating from the MC68HC705K1 to the MC68HC705KJ1

Freescale Semiconductor 

Application Note

Freescale Semiconductor, Inc.

Memory Maps

and Registers

Figure 5 and Figure 6 show the memory maps and registers of the K1

and KJ1. Modify your code to reflect these changes:

• The KJ1 has a total of 64 bytes of RAM. If you want to utilize this

additional memory of the KJ1, originate RAM memory to start at

$C0.

• The KJ1 has a total of 1232 bytes of EPROM for code space.

Originate EPROM memory to start at $300.

• Move the MOR register from location $17 on the K1 to location

$7F1 on the KJ1.

• Move the location of the COP register from location $3F0 on the

K1 to location $7F0 on the KJ1.

• Move the start of the interrupt vectors from location $3F8 on the

K1 to location $7F8 on the KJ1.

For More Information On This Product,

Go to: www.freescale.com

AN1746

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