R8C/3NT Group

4. Special Function Registers (SFRs)

R01DS0047EJ0100 Rev.1.00

Page 28 of 55

Jan 25, 2011

Table 4.15

ID Code Areas and Option Function Select Area

Notes:

1. The option function select area is allocated in the flash memory, not in the SFRs. Set appropriate values as ROM data by a program.

Do not write additions to the option function select area. If the block including the option function select area is erased, the option function select

area is set to FFh.

When blank products are shipped, the option function select area is set to FFh. It is set to the written value after written by the user.

When factory-programming products are shipped, the value of the option function select area is the value programmed by the user.

2. The ID code areas are allocated in the flash memory, not in the SFRs. Set appropriate values as ROM data by a program.

Do not write additions to the ID code areas. If the block including the ID code areas is erased, the ID code areas are set to FFh.

When blank products are shipped, the ID code areas are set to FFh. They are set to the written value after written by the user.

When factory-programming products are shipped, the value of the ID code areas is the value programmed by the user.

Address

Area Name

Symbol

After Reset

:

FFDBh

Option Function Select Register 2

OFS2

(Note 1)

:

FFDFh

ID1

(Note 2)

:

FFE3h

ID2

(Note 2)

:

FFEBh

ID3

(Note 2)

:

FFEFh

ID4

(Note 2)

:

FFF3h

ID5

(Note 2)

:

FFF7h

ID6

(Note 2)

:

FFFBh

ID7

(Note 2)

:

FFFFh

Option Function Select Register

OFS

(Note 1)