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CC3551E: Extension/stacked memories

Part Number: CC3551E

External or stacked memories of CC3551E are quite confusing. For example, in a document SLUUDH6-April 2026, There are errors in connection to flash memory as it is in Figure 2.7.   I have connected 32 Mbit Serial Flash with XSPI_CSFLASH, XSPI_CLK, XSPIDATA[0..3]. Can I add a PSRAM (i.e. APS6404L) XSPI_CSRAM, XSPI_CLK, XSPIDATA[0..3]. Does CC3551E support this additional external memory ?