11

03/06/00

GL651USB USB KEYBOARD HUB CONTROLLER

Version 1.0

Before FFRST[1:0] is used, ENDP[1~3] must have been set.

DRVSEL

( offset 0C)

R/W

R/W

R/W

R/W

R/W

R/W

R/W

--

INVDRV

DRVOE

DRV4

DRV3

DRV2

DRV1

DRV0

DRV[4:0]

: Select one of DRV1 to DRV20 port to drive if DRVOE is set.

5’h00 ~ 5’h11 stand for DRV1 to DRV20.

NOTE: 5’h14 ~5’h1f are invalid.

DROVE

: DRV[4:0] output enable. ONLY when DRVOE is set can DRV[4:0] drive

out.

INVDRV

: Set this bit to drive all DRV1-20 to low except the selected drive pin

SENSE ( offset 0D, default = 00h )

R/O

R/O

R/O

R/O

R/O

R/O

R/O

R/O

SENSE8

SENSE7

SENSE6

SENSE5

SENSE4

SENSE3

SENSE2

SENSE1

PORT_ENDP_SEL

( offset 0E, default = 00h )

R/W

R/W

R/W

R/W

R/W

R/W

--

PORTSEL

3

PORTSEL

2

PORTSEL

1

--

EPSEL3

EPSEL2

EPSEL1

Port under host command or Endpoint under host request

PORTSEL1

1’b1 – port 1 selected

PORTSEL2

1’b1 – port 2 selected

PORTSEL3

1’b1 – port 3 selected

EPSEL3

1’b1 – endpoint 3 is selected

EPSEL2

1’b1 – endpoint 2 is selected

EPSEL1

1’b1 – endpoint 1 is selected

Before FFDAT123 and TXCTL123 is used, EPSEL1~3 must have been set.

HUB_STAT_CHG

( offset 0F, default = 00h )

R/O

R/O

R/O

R/O

LCPWR

OVCUR

--

--

--

--

C_LCPWR C_OVCUR

HUB status and status change

LCPWR

: HUB local power status

1’b0 – local power good

1’b1 – local power lost

OVRCUR

: HUB over current indicator

1’b0 – No over-current condition currently exists

1’b1 – A hub over-current condition exists

C_LCPWR

: Local power status change

1’b0 – No change has occurred to local power status

1’b1 – local power status has changed

C_OVRCUR

: HUB over current indicator change

1’b0 – No change has occurred to the over-current indicator

1’b1 – Hub over-current indicator has changed

PORT_STATUS ( offset 10, default = 00h )

R/O

R/O

R/O

R/O

R/O

R/O

R/O

PT_LOW_

SPD

PT_PWR

--

PT_RST

PT_OVCU

R

PT_SUS

PT_EN

PT_CON

Port status indicator: