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參數(shù)資料
| 型號(hào)： | GL652USB |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | USB 7 PORT HUB CONTROLLER |
| 中文描述： | 7端口的USB集線器控制器 |
| 文件頁(yè)數(shù)： | 3/17頁(yè) |
| 文件大小： | 190K |
| 代理商： | GL652USB |
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3 08/18/00
GL652USB 7 PORT USB HUB CONTROLLER
Revision 1.2
2
The GL652USB is an 8 port USB hub with 1 upstream port and 7 downstream ports. It
uses an 8-bit RISC-like uC to encode/decode the host commands. The GL652USB is
designed mainly for stand-alone hub and can also be integrated in PC motherboard or any
other devices to support USB hub function. The GL652USB can switch between self-
power and bus-power automatically without re-plug in. The GL652USB 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 GL652USB supplies power enable flags by reading the over-current
flags. The GL652USB 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 GL652USB will turn LED off and stop the
clock when they are suspended.
3
PIN DEFINITIONS AND DESCRIPTIONS
l
GL652USB
Pin No.
Name
I/O
1
DP0
I/O
Upstream port USB data+
2
DM0
I/O
Upstream port USB data-
3
AGND
-
Analog ground
4
DP7
I/O
Downstream port 7 USB data+
5
DM7
I/O
Downstream port 7 USB data-
6
DP1
I/O
Downstream port 1 USB data+
7
DM1
I/O
Downstream port 1 USB data-
8
DP6
I/O
Downstream port 6 USB data+
9
DM6
I/O
Downstream port 6 USB data-
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
DP5
I/O
Downstream port 5 USB data+
17
DM5
I/O
Downstream port 5 USB data-
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
LED5
O
LED traffic indicator for downstream port 5
FUNCTION OVERVIEW
Description
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