We Designed a System US NS7520 We use 2M16 (4MB) flash use cs0 and 4M16(8MB) SDRAM use cs1, the FLASH ADDRESS AT ADDRESS 0x020000000 to 0x023fffff and SDRAM ADDRESS AT ADDRESS 0x000000000 to 0x007fffff We try to use ICE debug program or erase flash,but we don’t know how to setting the Registers to Initial the NS7520,could tell us ,what registers we must setting and how to setting the Correct Value