Neoway N723-EA - Page 20

N723-EA Hardware User Guide
Chapter 4 Module Pins
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20
SD/eMMC interface
SDC_PWR_EN
2
DO
Control of the external
power supply for
SD/eMMC
P3
Leave this pin floating if it is not used.
SDC_DATA2
3
B
SD/eMMC data 2
P2
Leave this pin floating if it is not used.
SDC_DATA3
4
B
SD/eMMC data 3
P2
Leave this pin floating if it is not used.
SDC_CMD
5
DO
SD/eMMC command
control
P2
Leave this pin floating if it is not used.
SDC_CLK
6
DO
SD/eMMC clock
P2
Leave this pin floating if it is not used.
SDC_DATA0
7
B
SD/eMMC data 0
P2
Leave this pin floating if it is not used.
SDC_DATA1
8
B
SD/eMMC data 1
P2
Leave this pin floating if it is not used.
SDC_DET
96
DI
SD/eMMC detect input
P3
Leave this pin floating if it is not used.
USIM2 Interfaces
I2S_SCLK
9
DO
I2S data clock
P3
Leave this pin floating if it is not used.
I2S_TX
10
DO
I2S data sending
P3
Leave this pin floating if it is not used.
I2S_RX
11
DI
I2S data receiving
P3
Leave this pin floating if it is not used.
I2S_WS
12
B
I2S right and right
channels selection
P3
Leave this pin floating if it is not used.
I2S_MCLK
64
DO
I2S master clock
P3
The default frequency is 26 MHz.
RMII Interfaces
RMII_TX_D0
16
DO
Data sending bit 0
P4
Leave this pin floating if it is not used.
RMII_TX_D1
15
DO
Data sending bit 1
P4
Leave this pin floating if it is not used.
RMII_RX_D0
19
DI
Data receiving bit 0
P4
Leave this pin floating if it is not used.