gl852 Genesys Logic, gl852 Datasheet - Page 13

• Manufacturer Part Number: gl852
• Description: Usb 2.0 Mtt Hub Controller
• Manufacturer: Genesys Logic

3.3 Pin Descriptions
©2000-2007 Genesys Logic Inc. - All rights reserved.
AMBER1~4
OVCUR1#~4
PWREN1#~4
GREEN1~4
Pin Name
DM0,DP0
DM1,DP1
DM2,DP2
DM3,DP3
DM4,DP4
Pin Name
SUSPND
PGANG/
PSELF
RREF
Note: USB signals must be carefully handled in PCB routing. For detailed information, please refer to
12 AVDD
11 RREF
GL852 Design Guideline.
64 Pin#
64 Pin#
GL852
GL852
56,54,
57,55,
60,48,
61,49,
14,15
25,26
31,32
42,40
43,41
44,34
45,35
3,4
8,9
17
50
53
42,40,30,28
43,41,31,29
45,35,32,23
46,36,33,24
GL852
48Pin#
GL852
48Pin#
17,18
21,22
B
9,10
P
3,4
5,6
37
39
11
23 GREEN4
24 AMBER4
I/O Type
I/O Type
Table 3.3 - Pin Descriptions
1,3,4: O
(pu)
(pd)
(pd)
O
O
B
B
B
B
B
B
B
I
I
2: B
HUB Interface
USB Interface
USB signals for USPORT
USB signals for DSPORT1
USB signals for DSPORT2
USB signals for DSPORT3
USB signals for DSPORT4
A 680 resister must be connected between RREF and
analog ground (AGND).
Active low. Over current indicator for DSPORT1~4
OVCUR1# is the only over current flag for GANG
mode.
Active low. Power enable output for DSPORT1~4
PWREN1# is the only power-enable output for GANG
mode.
Green LED indicator for DSPORT1~4
*GREEN[1~2] are also used to access the external EEPROM
For detailed information, please refer to Chapter 5.
Amber LED indicator for DSPORT1~4
*
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 GL852 is suspended, this pin will output low.
*For detailed explanation, please see Chapter 5
Gang
Individual
Amber
0: GL852 is bus-powered.
1: GL852 is self-powered.
O
O
[1~2] are also used to access the external EEPROM
35
36
input:0, output: 1@normal, 0@suspend
input:1, output: 0@normal, 1@suspend
GL852 USB 2.0 MTT HUB Controller
GREEN2/
EE_DO
AMBER2/
EE_DI
Description
Description
O
O
47 DGND
48 DVDD
Page 13
P
P