Table 3 Required RAM memory size for each configuration
From: Configurable M-factor VLSI DVB-S2 LDPC decoder architecture with optimized memory tiling design
Type of RAM | 360 FUs | 180 FUs | 90 FUs | 45 FUs |
|---|---|---|---|---|
(mem. pos. × width) | ||||
Message | 648 × 1800 | 1296 × 900 | 2592 × 450 | 5184 × 225 |
Channel (IN + PN) | 180 × 1800 | 360 × 900 | 710 × 450 | 1440 × 225 |
PN message | 135 × 1800 | 270 × 900 | 540 × 450 | 1080 × 225 |
Hard decoding (IN + PN) | 180 × 360 | 360 × 180 | 720 × 90 | 1440 × 45 |