ARM Cortex-A53 MPCore - ATB Interface Signals

Signal Descriptions
ARM DDI 0500D Copyright © 2013-2014 ARM. All rights reserved. A-28
ID021414 Non-Confidential
A.14 ATB interface signals
Table A-36 shows the ATB interface signals.
Note
• You must balance all ATB interface signals with respect to CLKIN and time them relative
to ATCLKEN.
Table A-36 ATB interface signals
Signal Direction Description
ATCLKEN Input ATB clock enable
ATREADYMx Input ATB device ready
AFVALIDMx Input FIFO flush request
ATDATAMx[31:0] Output Data
ATVALIDMx Output Data valid
ATBYTESMx[1:0] Output Data size
AFREADYMx Output FIFO flush
finished
ATIDMx[6:0] Output Trace source ID