Nor Flash, Emmc / Sd Card - TQ-Systems TQMLX2160A Preliminary User's Manual

4.5

NOR flash, eMMC / SD card

The LX2160A provides two SPI interfaces XSPI1_A and XSPI1_B. XSPI1_B is multiplexed with SDHC_2.
For TQMLX2160A without an assembled eMMC, the SDHC_2 interface routed to the connectors can be used.
The SDHC interface can be enabled with the eMMC_SEL0/1 signals. Pull-Ups to 3.3 V are provided on the TQMLX2160A.
The eMMC_SEL configuration cannot be changed during runtime.
LX2160A
XSPI_A
XSPI_B
Figure 6: Block diagram NOR flash interface
Table 3: eMMC_SEL0/1 signals
eMMC_SEL0
0
0
1
1
Preliminary User's Manual l TQMLX2160A UM 0002 l © 2020, TQ-Systems GmbH
NOR Flash #1
eMMC_SEL1
0 External SDHC
1 eMMC on TQMLX2160A + 2 × I
0 (Undefined)
1 eMMC on TQMLX2160A
NOR Flash #2
eMMC
Configuration
C
2
Page 8
Module
Connector
XSPI_B