gl850 ETC-unknow, gl850 Datasheet - Page 13

• Manufacturer Part Number: gl850
• Description: Usb 2.0 4-port Hub Controller
• Manufacturer: ETC-unknow

3.3 Pin Descriptions
©2000-2003 Genesys Logic Inc.—All rights reserved.
Note: USB signals must be carefully handled in PCB routing. For detailed information, please refer to
7,8,9,10
2,3,4,5
13,14,
24,25,
30,31,
56,54,
57,55,
60,48,
61,49,
15,16
26,27
32,33
42,40
43,41
44,34
45,35
Pin#
Pin#
17
50
53
6
GL850 Design Guideline.
DMF0,DMH0,
DPH0,DPF0
DM1,DMH1,
DPH1,DP
DM2,DMH2,
DPH2,DP2
DM3,DMH3,
DPH3,DP3
DM4,DMH4,
DPH4,DP4
RPU
RREF
OVCUR1#~
OVCUR4#
PWREN1#~
PWREN4#
GREEN1~
GREEN4
AMBER1~
AMBER4
PSELF
PGANG/
SUSPND
Pin Name
Pin Name
Type
Type
(pu)
(pu)
(pd)
(pd)
(pd)
Table 3.2 - Pin Descriptions
O
O
O
B
B
B
B
B
B
B
B
I
I
USB signals for USPORT
USB signals for DSPORT1
USB signals for DSPORT2
USB signals for DSPORT3
USB signals for DSPORT2
RPU connects 1.5K è resister to 3.3V. RPU can be set to
disconnected by externally resetting RESET#
A 510è resister must be connected between RREF and analog
ground (AGND).
Active low. Over current indicator for DSPORT1~
DSPORT4
For GANG mode, OVCUR1# is the only over current flag for
GL850
Active low. Power enable output for DSPORT1~
DSPORT4
For GANG mode, PWREN1# is the only power enable output for
GL850.
Green LED indicator for DSPORT1~DSPORT4
Amber LED indicator for DSPORT4~DSPORT1
*AMBER[4~1] are also used to access the external
EEPROM. For detailed information, please refer to
Chapter 5.
This pin is default put in input mode after power-on reset.
Individual/gang mode is strapped during this period. After the
strapping period, this pin will be set to output mode, and then
output high for normal mode. When GL850 is suspended, this pin
will output low.
*For detailed explanation, please see Chapter 5
Input: 0: individual, 1: gang
Output: 0: suspend, 1: normal
0: GL850 is bus-powered.
1: GL850 is self-powered.
HUB Interface
USB Interface
GL850 USB 2.0 4-Port HUB Controller
Description
Description
Page 13