4 ATB synchronous bridge

The css600_atbsyncbridge is used to transport the AMBA trace bus across a power domain boundary.

The ATB synchronous bridge provides the following features:

  • Two synchronous clock domains with any frequency difference. The clocks must be skew balanced and from a common source so that they are high-level-gated by a common control point.
  • Two independent power domains, either of which can be switched relative to the other.
  • Two Q-Channel LPIs for clock and power switching management.
  • Two-part meta-component with separate slave and master side components.
  • Configurable ATB data width.
  • Configurable for 2- or 3-stage synchronizers.
  • Automatically manages upstream flush of trace data before power down.

The following figure shows the external connections on the ATB synchronous bridge.

Figure 4-9 css600_atbsyncbridge logical connections
To view this graphic, your browser must support the SVG format. Either install a browser with native support, or install an appropriate plugin such as Adobe SVG Viewer.


Non-ConfidentialPDF file icon PDF version100806_0300_00_en
Copyright © 2017, 2018 Arm Limited or its affiliates. All rights reserved.