Isp Sector Size; Reset Vector Address - Samsung S3C8275X User Manual

EMBEDDED FLASH MEMORY INTERFACE
Smart Option(003EH) ISP Size Selection Bit
Bit 2
1
0
0
0
0
NOTE: The area of the ISP sector selected by Smart Option bit (003EH.2 − 003EH.0) can not be erased and programmed
by LDC instruction in user program mode.
ISP Reset Vector and ISP Sector Size
If you use ISP sectors by setting the ISP enable/disable bit to "0" and the Reset Vector Selection bit to "0" at the
Smart Option, you can choose the reset vector address of CPU as shown in Table 16-3 by setting the ISP Reset
Vector Address Selection bits.
Smart Option (003EH) ISP Reset
Vector Address Selection Bit
Bit 7 Bit 6
1 x
0 0
0 0
0 1
0 1
NOTE: The selection of the ISP reset vector address by smart option (003EH.7 – 003EH.5) is not dependent of the
selection of ISP sector size by smart option (003EH.2 – 003EH.0).
16-6
Table 16-1. ISP Sector Size
Bit 1 Bit 0
x x
0 0
0 1
1 0
1 1
Table 16-2. Reset Vector Address
Address After POR
Bit 5
x
0
1
0
1
Area of ISP Sector
−
100H – 1FFH (256 byte)
100H – 2FFH (512 byte)
100H – 4FFH (1024 byte)
100H – 8FFH (2048 byte)
Reset Vector Usable Area for ISP
0100H
0200H
0300H
0500H
0900H

ISP Sector Size

256 Bytes
512 Bytes
1024 Bytes
2048 Bytes
Sector
−
100H − 1FFH
100H − 2FFH
100H − 4FFH
100H − 8FFH
S3F8275X
0
ISP Sector Size
−
256 Bytes
512 Bytes
1024 Bytes
2048 Bytes