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Specification
NET2270 USB Interface Controller
______________________________________________________________________________
NetChip Technology, Inc., 2003
335 Pioneer Way, Mountain View, California 94041
TEL (650) 526-1490
FAX (650) 526-1494
http://www.netchip.com
Rev 3.6, April 17, 2003
11
1.4.1 Example connections to NET2270
.
C7
0.1uF
3.3VCCA
ALE
RESET#
IOR#
CS#
DACK
EOT
C
TP1
CLOCK_OUT
USBLGND
USBVCC
DREQ
C12
0.01uF
C14
0.01uF
IRQ#
R1
1K
3.3VCC
R5
35.7 +/- 1%
1
2
RSDP
R4
35.7 +/- 1%
1
2
R3
1.5K
1
2
RSDM
RPU
DP
VBUSL
IOW#
+
C6
10uF
DMAWR#
+
C5
10uF
+
C4
10uF
C9
0.1uF
C10
0.01uF
C11
0.1uF
C13
0.1uF
C8
0.01uF
J1
USB_B
1
1
2
2
3
3
4
4
GND
5
L2
42 ohm
L1
42 ohm
C3
0.01uF
R7
1M
USBCGND
3.3VCC
L3
1uH
1
2
3.3VCCA
3.3VCCA
3.3VCC
3.3VCC
LA3
LA4
LA1
LA2
LA5
R8
47K
R6
9.09K +/- 1%
NOTE: For 16-bit bus, use address bits 5:1;
For 8-bit bus, use address bits 4:0.
L4
1uH
1
2
ANALOG
GROUND
DIGITAL
GROUND
C2
10pF
C1
10pF
Y1
30 MHz
1
2
LD5
LD4
LD3
LD2
LD1
LD0
LD8
LD7
LD6
LD15
LD9
LD13
LD14
LD12
LD10
LD11
R2
10K
1
2
3.3VCC
DM
LA[5:1]
DMARD#
LD[15:0]
U1
N2270
LA0
8
LA1
7
LA2
6
LA3
5
LA4
4
SMC
3
CS#
46
IOR#
44
IOW#
45
ALE
40
DMAWR#
13
RESET#
43
DACK
38
EOT
39
TEST1
1
TEST2
2
XIN
11
XOUT
12
RREF
49
VBUS
48
LD0
14
LD1
15
LD2
16
LD3
18
LD4
20
LD5
21
LD6
22
LD7
23
LD8
25
LD9
26
LD10
27
LD11
28
LD12
30
LD13
31
LD14
33
LD15
34
DREQ
37
IRQ#
47
RPU
53
RSDM
59
DM
58
DP
56
RSDP
55
LCLKO
35
TEST3
64
DMARD#
36
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