TMS320C6678: CCS: Register View is different from the real memory status.

Tool/software:

Hi, all:

CCS Version: 5.5.0.00077 

Chip: TMS320C6678

Options:

1. Connect to the device via J-TAG(XDS100V3) in CCS
2. Launch the target with a ccxml
3. Connect core0;
4. Open the Register View, and check DDR3 register status, which value is 0x0000_0000;
5. Right Click on the emif_mod_id_rev, and select "View Memory at Adress" and it shows in  the memroy View (Like below)：

Question： Why is the "Rester View" different from the real status in the  Memory View? (The memory view is the real register's condition.)

Thanks!