IPX-DDR2: DDR2 Memory Controller
General Description
The IPX-DDR2 core is a DDR2 memory controller for Xilinx Virtex-4 and for Virtex-5 devices running up to 266 MHz and with bus width of up to 64 bits. This intoPIX core reduces the number of logic resources and improves the latency of row accesses. The DDR2 Memory controller guarantees efficient DDR2 access to the JPEG 2000 IP-cores and is fully compatible with all the families of intoPIX JPEG 2000 IP-cores.
The user interface is a bus of up to 256-bit width running at up to 133 MHz. The maximum peak rate transfer is 64 x 2 x 266 ~= 34 Gbit/s. The physical bus width is selectable between 8, 16, 32 and 64 bits, and the user interface is also selectable between 32, 64, 128 or 256 bit.
Resources
| Virtex-4 |
Virtex-5 | |
| Slices (for a 32-bit 850 510 wide physical data-bus; user data bus of 128-bit) | 850 | 510 |
| RAMBs | 0 | 0 |
| DSPs | 0 | 0 |
| Frequency (533 Mbps per data bit) | Up to 266 Mhz | Up to 266 Mhz |
Key Features
- Configurable data memory width
- Continuous random data accesses within the same row
- Reduced footprint. Area is linear with respect to the data memory width
- High operating frequency supported
- Efficient integration with memory arbiter cores, including IPX-MA (Memory Arbiter)