DDRIOCTRL

         DDR IO Control Register
      
Module Instance Base Address Register Address
ecc_hmc_ocp_slv_block 0xFFCFB000 0xFFCFB008

Offset: 0x8

Access: RW

Important: The value of a reserved bit must be maintained in software. When you modify registers containing reserved bit fields, you must use a read-modify-write operation to preserve state and prevent indeterminate system behavior.
Bit Fields
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

Reserved

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Reserved

IO_SIZE

0x0

DDRIOCTRL Fields

Bit Name Description Access Reset
1:0 IO_SIZE
External Configuration of DDR IO size.
This field indicates the width of the external DDR to which the hard memory cotnroller is interfacing.
These bits are configured at the start to indicate the external DDRIO size.
0x0 = DDR IO x16. default value after reset
0x1 = DDR IO x32
0x2 = DDR IO x64 
RW 0x0