Renesas M3T-ICC740 Technical Information PDF herunterladen (Seite 34)

group, remove the SFR area from page N.

6.2.4. Changing the ROM Area Address

Set the ROM area as suitable for your target microcomputer. Here, you set a general

program area and a special page.

Set a general program area, as shown below.

-Z(CODE)RCODE,Z_CDATA,N_CDATA,C_ICALL,C_RECFN,CSTR,

CCSTR,CODE,CONST=C080-FEFF

The above setting directs that segments for the ROM area be located in a ROM space

ranging from the beginning address C080h of the ROM area to the address FEFFh

preceding the special page.

For the microcomputers that have a reserved ROM area, however, the ROM segment space

must be set to begin from an address following that reserved area. Also make sure the ROM

segment space is set to end at an address preceding the special page or the interrupt vector

area.

The special page area must be set to end at an address preceding the interrupt vector area.

The C_FNT segment indicates the special page area.

This setting will allow you to check to see if the ROM segments are located overlapping the

interrupt vector area.

-Z(CODE)C_FNT=FF00-FFDB

6.2.5. Changing the Interrupt Vector Area

Change the interrupt vector area.

In the ICC740, the INTVEC segment indicates the interrupt vector area.

-Z(CODE)INTVEC=FFDC-FFFD

The above shows how to set the interrupt vector area in the 3803 group of microcomputers.

Make this setting as suitable for your target microcomputer.

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 52 53

Keine Kommentare

Renesas M3T-ICC740 Technical Information Seite 34