GL852 Просмотр технического описания (PDF) - GENESYS LOGIC

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GL852

USB 2.0 MTT HUB Controller

GENESYS LOGIC 

GL852 USB 2.0 MTT HUB Controller

11 RREF

B 23 GREEN4

O

35

GREEN2/

EE_DO

O 47 DGND

P

12 AVDD

P 24 AMBER4

O

36

AMBER2/

EE_DI

O 48 DVDD

P

3.3 Pin Descriptions

Table 3.3 - Pin Descriptions

USB Interface

GL852

Pin Name

64 Pin#

GL852

48Pin#

I/O Type

Description

DM0,DP0

DM1,DP1

DM2,DP2

DM3,DP3

DM4,DP4

RREF

3,4

8,9

14,15

25,26

31,32

17

3,4

5,6

9,10

17,18

21,22

11

B USB signals for USPORT

B USB signals for DSPORT1

B USB signals for DSPORT2

B USB signals for DSPORT3

B USB signals for DSPORT4

B

A 680Ω resister must be connected between RREF and

analog ground (AGND).

Note: USB signals must be carefully handled in PCB routing. For detailed information, please refer to

GL852 Design Guideline.

HUB Interface

GL852

Pin Name

64 Pin#

GL852

48Pin#

I/O Type

Description

OVCUR1#~4

PWREN1#~4

GREEN1~4

AMBER1~4

PSELF

PGANG/

SUSPND

56,54,

42,40

57,55,

43,41

60,48,

44,34

61,49,

45,35

50

53

42,40,30,28

43,41,31,29

45,35,32,23

46,36,33,24

37

39

I

(pu)

O

1,3,4: O

2: B

(pd)

O

(pd)

I

B

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

*Amber [1~2] are also used to access the external EEPROM

0: GL852 is bus-powered.

1: GL852 is self-powered.

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

input:1, output: 0@normal, 1@suspend

Individual input:0, output: 1@normal, 0@suspend

©2000-2007 Genesys Logic Inc. - All rights reserved.

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