SNIU028D February 2016 – September 2020 UCD3138 , UCD3138064 , UCD3138064A , UCD3138128 , UCD3138A , UCD3138A64
Address FFFFFE24 – Memory Fine Base Address Low Register 4
Address FFFFFE2C – Memory Fine Base Address Low Register 5
Address FFFFFE34 – Memory Fine Base Address Low Register 6
Address FFFFFE3C – Memory Fine Base Address Low Register 7
Address FFFFFE44 – Memory Fine Base Address Low Register 8
Address FFFFFE4C – Memory Fine Base Address Low Register 9
Address FFFFFE54 – Memory Fine Base Address Low Register 10
Address FFFFFE5C – Memory Fine Base Address Low Register 11
Address FFFFFE64 – Memory Fine Base Address Low Register 12
Address FFFFFE6C – Memory Fine Base Address Low Register 13
Address FFFFFE74 – Memory Fine Base Address Low Register 14
Address FFFFFE7C – Memory Fine Base Address Low Register 15
Address FFFFFE84 – Memory Fine Base Address Low Register 16
15 | 10 | 9 | 8 | 2 | 1 | 0 |
ADDRESS[15:10] | AW | Reserved | RONLY | PRIV |
R/W-00 0000 | R/W-0 | R/W-000 0000 | R/W-0 | R/W-0 |
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset |
Bit | Field | Type | Reset | Description |
---|---|---|---|---|
15-10 | ADDRESS[15:10] | R/W | 00 0000 | 6 Least Significant Bits of the Base Address. The Base Address sets the 22 most significant bits of the memory address. |
9 | AW | R/W | 0 | Auto-wait-on-write. When this bit is set, any write operation on this memory select takes two system cycles. 0 = Write operation is not supplemented with an additional cycle (Default) 1 = Write operation takes an additional cycle |
8-2 | Reserved | R/W | 000 0000 | |
1 | RONLY | R/W | 0 | Read-only protection. This bit sets read-only protection for the memory selected by the memory select. An illegal access exception is generated when a write is attempted to the memory. 0 = Read/write access to memory (Default) 1 = Read accesses to memory only |
0 | PRIV | R/W | 0 | Privilege mode protection. This bit sets privilege mode protection for the memory Registration selected by the memory select. An illegal access exception is generated on any access to memory protected by privilege mode. 0 = User/privilege mode accesses to memory (Default) 1 = Privilege mode accesses to memory only |