A

A

B

B

C

C

D

D

E

E

4

4

3

3

2

2

1

1

1 GPIO3~GPIO7 are for customization usage. Different

strap combinations can make different code options.

2.GPIO6~GPIO7 can be used as hub LED indication also.

3.For individual mode hub, SUSPND should be pulled low.

For ganged mode hub, SUSPND should be pulled up.

KEYBOARD

MATRIX

SENSE1

SENSE2

SENSE3

SENSE4

SENSE5

SENSE6

SENSE7

SENSE8

'00/03/16

1. First Product Release

'00/03/03

Description

1. ADD Q4 to prevent current leakage when adapter is plugged in but USB

cable isn't.

1.1

1.0

Date

Rev.

KBHUB.DSN

1.1

GENESYS USB KEYBOARD HUB

B

1

2

Thursday, March 16, 2000

Title

Size

Document Number

Rev

Date:

Sheet

of

CAPSLOCK

GPIO3

GPIO4

DRV19

DRV18

GPIO6

GPIO7

DRV1

SENSE1

SUSPND

DRV20

NUMLOCK

SCLOCK

DRV17

DRV16

NUMLOCK

CAPSLOCK

SCLOCK

GPIO6

GPIO7

SENSE1

SENSE2

SENSE3

SENSE4

SENSE5

SENSE6

SENSE7

SENSE8

GPIO4

SUSPND

GPIO7

GPIO6

GPIO5

GPIO5

GPIO3

SELF

DM2

DP2

DM0

DP0

DM1

DP1

VCP

B_VCC

B_VCC

B_VCC

Y1

12 MHz

D4

LED

D5

LED

D3

LED

D2

LED

D1

LED

R1

1K

R10 1K

R2

1M, NI

R8

1K

R17 1K

R9

1K

R4

1M, NI

R6

1M, NI

R7

1M, NI

C3

4.7U

R11

1M

C2

30P

U1

GL651USB

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

80

79

78

77

76

75

74

73

72

71

70

69

68

67

66

65

64

63

62

61

60

59

58

57

56

55

54

53

52

51

NC

NC

GND

NC

DM2

NC

DP2

NC

DM0

NC

DP0

NC

VCP

NC

DM1

NC

DP1

NC

VDD

NC

NUMLOCK

NC

CAPSLOCK

NC

SCLOCK

NC

TEST

NC

DRV1

NC

NC

SENSE1

SELF

NC

RESET

GPIO3

NC

GPIO4

GPIO5

NC

VDD

NC

GPIO6

NC

GPIO7

NC

SUSPND

NC

DRV20

NC

DRV19

NC

DRV18

NC

DRV17

NC

DRV16

NC

GND

NC

R14

1M

R13

1M

R5

1M, NI

C5

0.1U

C1

30P

C4

0.1U

R15

1M

R16

1M

R3

1M, NI

R12

1M

8. Application Circuit