Window speed masks specify the access speed for a memory or I/O window. The following table shows the defined window speed masks.
Speed mask |
Value |
| WIN_SPEED_EXP_MASK | Exponent mask |
| WIN_SPEED_EXP_1NS | 1 nanosecond |
| WIN_SPEED_EXP_10NS | 10 nanoseconds |
| WIN_SPEED_EXP_100NS | 100 nanoseconds |
| WIN_SPEED_EXP_1US | 1 microsecond |
| WIN_SPEED_EXP_10US | 10 microseconds |
| WIN_SPEED_EXP_100US | 100 microseconds |
| WIN_SPEED_EXP_1MS | 1 millisecond |
| WIN_SPEED_EXP_10MS | 10 milliseconds |
| WIN_SPEED_MANT_MASK | Mantissa mask |
| WIN_SPEED_MANT_10 | 1.0 |
| WIN_SPEED_MANT_12 | 1.2 |
| WIN_SPEED_MANT_13 | 1.3 |
| WIN_SPEED_MANT_15 | 1.5 |
| WIN_SPEED_MANT_20 | 2.0 |
| WIN_SPEED_MANT_25 | 2.5 |
| WIN_SPEED_MANT_30 | 3.0 |
| WIN_SPEED_MANT_35 | 3.5 |
| WIN_SPEED_MANT_40 | 4.0 |
| WIN_SPEED_MANT_45 | 4.5 |
| WIN_SPEED_MANT_50 | 5.0 |
| WIN_SPEED_MANT_55 | 5.5 |
| WIN_SPEED_MANT_60 | 6.0 |
| WIN_SPEED_MANT_70 | 7.0 |
| WIN_SPEED_MANT_80 | 8.0 |
| WIN_SPEED_USE_WAIT | Use wait if available. |