Ibase SMARC Evaluation Kit Manuale Utente Pagina 42

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16
SMARC Evaluation Kit
4.2.10. SD Card Interface
SD Signals
Pin
Signal Name
I/O
Type
Power Rail
Description
P39
SD2_DATA0
I/O
CMOS
3.3V
4 bit data path
P40
SD2_DATA1
I/O
CMOS
3.3V
P41
SD2_DATA2
I/O
CMOS
3.3V
P42
SD2_DATA3
I/O
CMOS
3.3V
P33
SD2_WP
I
CMOS
3.3V
Write Protect
P35
SD2_CD#
I
CMOS
3.3V
Card Detect
P37
SD2_PWR_EN
O
CMOS
3.3V
SD card power enable
P36
SD2_CLK
O
CMOS
3.3V
Clock
P34
SD2_CMD
I/O
CMOS
3.3V
Command line
Reference Schematic
Normal
Micro SD
CN11
FOXCONN_WQ21823-DES1-7F(REV:E)
DAT2
1
CD/DATA3
2
CMD
3
VDD
4
CLK
5
VSS
6
DAT0
7
DAT1
8
PAD2
P2
CONN
P3
CD
P4
PAD1
P1
TP13
TP12
TP14
SD2_DATA1
TP15
TP16
+3.3V_SD
R73 10K/4
TP17
SD2_DATA1
SD2_DATA0
SD2_DATA3
SD2_PWR_EN13
SD2_DATA2
SD2_DATA013
SD2_WP13
SD2_DATA113
SD2_CD#
SD2_CD#13
SD2_DATA313
SD2_DATA2
SD2_DATA3
C64
22UF/6.3V/6
SD2_DATA3
R92 10K/4
SD2_CLK
SD2_CMD13
SD2_CMD
R102 10K/4
SD2_DATA213
SD2_DATA2
SD2_DATA0
R103 10K/4
SD2_CLK13
+3.3V_VCC
R119 0/4
TP11
SD2_CLK
R104 10K/4
SD2_CD#
+3.3V_SD
R79 10K/4
SD2_DATA0
SD2_DATA1
R77 10K/4
SD2_CMD
+3.3V_SD
SD2_CD#
Q11
IRLML6401TRPBF
G
DS
R55 10K/4
+3.3V_VCC
Q10
2N7002
G
DS
R61 0/4/X
R53 10K/4/X
R57 10K/4
SD2_DATA3
SD2_DATA2
SD2_DATA0
SD2_DATA1
SD2_CLK
SD2_CMD
C155 18PF/50V/4
SD2_CMD
C157 18PF/50V/4
C158 18PF/50V/4
C159 18PF/50V/4
C160 18PF/50V/4
C63
0.1UF/25V/4
C161 18PF/50V/4
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