Sam4s ER-280 SERIES Service Manual page 73

A
SD CARD BLOCK (VDD 3.3V)
1
2
(0x180000)
CS_SDCARD
SDVDD
R112
10K
3
A[3:1]
A0
H L
D[7:0]
XCSN
XWRLN
[CPU 8BIT DATA BUS WRITE ACCESS TYPE1]
A[3:1]
A0
H L
D[7:0]
XCSN
XRDN
[CPU 8BIT DATA BUS READ ACCESS TYPE1]
4
A
SAM4S ER-280 SERIES
B
SDVDD SDVDD
U27
W86L388D
36 15
A3 DAT2
A(3) SD_DAT2
37 16
A2 CD/DAT3
A(2) SD_DAT3
38 17
A1 CMD
A(1) SD_CMD
20
CLK
SD_CLK
40 21
D15/A0 DAT/DAT0
A(0) SD_DAT0
41 22
D14 DAT1
SD_DAT1
44
D13
45 27
D12 CD/GPIO0
SD_/CD
46 26
D11 GPIO1
47 25
D10 GPIO2
48 24
D9 PWEN/GPIO3
SDVOLT_ONOFF
1 23
D8 WP/GPIO4
SD_/WP
2
D7
D(7)
3
D6
D(6)
4
D5
D(5)
5
D4
D(4)
7
D3
D(3)
8
D2
D(2)
9
D1
D(1)
10
D0
D(0)
35
XCSN
32
XRDN/XRWN
_RD
34
XWRLN/XBE1
_WR
33
XWRHN/XBE0
29
XDRQN/XRDYN
30
XDAKN/XASN
11
XINTN
SD_INT
12
RSTN
SD_RESET
39
XTYP2
0: TYPE1
1: TYPE2
28
HCKI
13
XTI
SD_XIN
14
XTO
SD_XOUT
NO POP
14.7456MHZ
SD_XIN
X3
SD_XOUT
C67 C66
22pF 22pF
B
SDVDD
C62 C63
100nF 100nF
VDD33V
R116 R130
10K 10K
SD_DAT2
SD_DAT3
SD_CMD
SD_CLK
SD_DAT0
SD_DAT1
SD_/WP
SD_/CD
VDD33V
2 3
R114
10K
Q18
1
KSA1182-Y
R115
470
Q17
R117 MMBT2222A
4.7K
3
1
SDVOLT_ONOFF
2
R119
10K
C
VSDCARD
R125 R129 R128 R124 R127 R123
VSDCARD
10K 10K 10K 10K 10K 10K CN14
SD SOCKET
9
DAT2
1
CD/DAT3
2
CMD
3
VSS
4
VDD
5
CLK
6
VSS
7
DAT0
8
DAT1
10
/WP
11
/CD
VSDCARD
VDD50V
U26
(SOT-223) VDD33V
LD1117
C70 T6
3 2
IN OUT
100nF
4
ADJ
CE8
R113
1
100uF
120
16V
R110
200
Shin Heung Precision Co., Ltd.
Size
A3
Date
File Name
C
D D
1
2
3
SDVDD
D25
BAT43WS
ZD4
3.3V
C64
100nF
4
TITLE : ER-280 Rev
1.3
SD CARD BLOCK
Drawn by
2007.02.28 K.Y CHOI
Sheet of
ER280 MAIN.SCH 6 11
D D
10-7