AR# 1468: XBLOX 5.x: Possible simulation problems if the labels are missing
AR# 1468
XBLOX 5.x: Possible simulation problems if the labels are missing
描述
Keywords: XBLOX, simulation, lablels
Urgency: Standard
General Description:
Designers may run into problems implementing or simulating XBLOX designs if labels do not exist on all XBLOX buses. If labels do not exist on all XBLOX buses, they may show up as undefined in simulation.
解决方案
Always label buses associated with XBLOX symbols, including:
1. XBLOX buses between two XBLOX symbols.
2. XBLOX or non-XBLOX buses between an XBLOX and non-XBLOX symbol.
For example, if an FD8CE (non-XBLOX symbol) is driving a BUS_IF08 (XBLOX symbol) and BUS_IF08 is in turn driving a SLICE (XBLOX symbol), add the label 'COUNT[7:0]' with indices between the FD8CE and BUS_IF08 and add the label 'SPLIT' between BUS_IF08 and SLICE without indices on it.