Technical Description
miriac MPX-LX2160A User Manual
V1.4
53/73
© MicroSys Electronics GmbH 2020
4.20.11
eSDHC
The MPX-LX2160A has two SDHC interfaces. The SDHC1 module interface
supports SD/SDIO cards (1/4-bit) and SDHC2 supports eMMC devices (1/4/8-bit)
up to HS400 mode of operation.
The SHDC1 interface (8-bit) and the SPI3 interface share pins, thus 8-bit support and
SPI are mutually exclusive.
The following table shows the internal connections:
CPU
Module Connector
Ball
Signal
Pin
Signal
I/O
Range
Signal
conditioning
P3
SDHC2_CLK
→
ST1-E17
SDHC2_EXT_
OVDD
(1,8V)
SR: 0R
P2
SDHC2_CMD
↔
ST1-E16
SDHC2_EXT_CM
D
OVDD
(1,8V)
PU: 4k7 SR: 0R
P1
SDHC2_DS
↔
ST1-E15
SDHC2_EXT_
OVDD
(1,8V)
PD: 47k SR:0R
R2
SDHC2_DAT0
↔
ST1-D18
SDHC2_EXT_
OVDD
(1,8V)
R1
SDHC2_DAT1
↔
ST1-E19
SDHC2_EXT_
OVDD
(1,8V)
T1
SDHC2_DAT2
↔
ST1-D17
SDHC2_EXT_
OVDD
(1,8V)
U1
SDHC2_DAT3
↔
ST1-E20
SDHC2_EXT_
OVDD
(1,8V)
R3
SDHC2_DAT4
↔
ST1-F15
SDHC2_EXT_
OVDD
(1,8V)
T3
SDHC2_DAT5
↔
ST1-G15
SDHC2_EXT_
OVDD
(1,8V)
V1
SDHC2_DAT6
↔
ST1-F16
SDHC2_EXT_
OVDD
(1,8V)
SDHC2_DAT7
↔
ST1-G16
SDHC2_EXT_
OVDD
(1,8V)
Table 4-30 SDHC2 interface: pin assignments