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GL650USB Datasheet(PDF) 3 Page - List of Unclassifed Manufacturers

Part No. GL650USB
Description  USB 4 PORT HUB CONTROLLER
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Maker  ETC [List of Unclassifed Manufacturers]
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GL650USB Datasheet(HTML) 3 Page - List of Unclassifed Manufacturers

 
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3
08/18/00
GL650USB 4 PORT USB HUB CONTROLLER
Revision 1.2
2
FUNCTION OVERVIEW
The GLI650USB is a 5 port USB hub with 1 upstream port and 4 downstream ports. It
uses an 8-bit RISC-like uC to encode/decode the host commands. The GL650USB is
designed mainly for stand-alone hub and can also be integrated in PC mo therboard or any
other devices to support USB hub function. The GL650USB can switch between self-
power and bus-power automatically without re-plug in. The GL650USB can be
configured as individual mode or ganged mode for the power management of
downstream port devices. To prevent from abnormal current consumption of downstream
port devices, the GL650USB supplies power enable flags by reading the over-current
flags. The GL650USB supports smart traffic indication through the LED lighting. The
higher data traffic flows through one port, the higher frequency of that port’s LED blinks.
To minimize the power consumption, the GL650USB will turn LED off and stop the
clock when they are suspended.
3
PIN DEFINITIONS AND DESCRIPTIONS
l
GL650USB
Pin No.
Name
I/O
Description
1
DP0
I/O
Upstream port USB data+
2
DM0
I/O
Upstream port USB data-
3
AGND
-
Analog ground
4
NC
-
15K resister pull low
5
NC
-
15K resister pull low
6
DP1
I/O
Downstream port 1 USB data+
7
DM1
I/O
Downstream port 1 USB data-
8
NC
-
15K resister pull low
9
NC
-
15K resister pull low
10
DP4
I/O
Downstream port 4 USB data+
11
DM4
I/O
Downstream port 4 USB data-
12
AVCC
-
Analog VCC(5V)
13
DP2
I/O
Downstream port 2 USB data+
14
DM2
I/O
Downstream port 2 USB data-
15
VCP
-
3.3V output
16
NC
-
15K resister pull low
17
NC
-
15K resister pull low
18
DP3
I/O
Downstream port 3 USB data+
19
DM3
I/O
Downstream port 3 USB data-
20
SUSPND
O
Suspend indication output
21
SELF
I
1: SELF-powered. 0: INDIVIDUAL-powered
22
LED1
O
LED traffic indicator for downstream port 1
23
LED2
O
LED traffic indicator for downstream port 2
24
LED3
O
LED traffic indicator for downstream port 3
25
RESET
I
Reset input
26
LED4
O
LED traffic indicator for downstream port 4
27
OVCUR4#
I
Over current flag for downstream port4
28
NC
-
-
29
PWRENB4#
O
Power enable for downstream port 4


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