Read/Write Waveforms With External CE

Versal ACAP Memory Resources Architecture Manual (AM007)

Document ID
AM007
Release Date
2020-11-24
Revision
1.1 English

The following figures show read/write waveforms with external CE. Using external CE is allowed for single UltraRAM blocks only, and is not supported for cascaded UltraRAMs. RDACCESS is not supported when USE_EXT_CE=TRUE.

Figure 1. External CE with Attributes IREG_PRE_A/B=FALSE, OREG_A/B=TRUE, OREG_ECC_A/B=TRUE, USE_EXT_CE_A/B=TRUE

RDACCESS is not supported when USE_EXT_CE=TRUE.

Figure 2. External CE with Attributes IREG_PRE_A/B=FALSE, OREG_A/B=FALSE, OREG_ECC_A/B=TRUE, USE_EXT_CE_A/B=TRUE