These four registers allow you to set the TSTRB/TKEEP value for the last beat of the
transfer. This register along with TLEN allows you to generate transfers with byte
level granularity.
Table 1. User STRB/TKEEP Set 1 to 4 (0x40 to 0x4C)
| Bits |
Name |
Reset Value |
Access Type |
Description |
| 31:0 |
TKTS |
0x0 |
R/W |
TSTRB/TKEEP value to be appeared on
the last beat of the transfer. |
- For a 32-bit wide TDATA bus to generate a TKEEP/TSTRB value
of 0x3, register 0x40 needs to be written with 0x3. 0x44 to
0x4C can be ignored in 32-bit TDATA width case.Because
maximum TDATA width supported is 1,024 bits, 128 bits are
needed to specify TSTRB/TKEEP values. In such a case, your
value of TSTRB/TKEEP needs to be written to 0x40 to 0x4C
with least significant bits set in 0x40.
|