GL651USB View Datasheet(PDF) - Genesys Logic

Part Name

Description

MFG CO.

GL651USB

2-PORT USB KEYBOARD HUB CONTROLLER

Genesys Logic 

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GL651USB USB KEYBOARD HUB CONTROLLER

PT_LOW_SPD

PT_PWR

PT_RST

PT_OVCUR

PT_SUS

PT_EN

PT_CON

:1’b0 – full speed device connected, 1’b1 – low speed device

connected.

1’b0 – port is in power off state, 1’b1 – port is not in power

off state

:1’b0 – Reset signaling not asserted, 1b’1 – Reset signaling

asserted

: 1’b0 – No over-current condition occurred on this port

1’b1 – An over-current condition exists on this port

: 1’b0 – port not suspended, 1’b1 – port suspended or

resuming

: 1’b0 – port is disabled, 1’b1 – port is enabled

: 1’b0 – No device is present, 1’b1 – A device is present on

this port

BUS_PORT_DATA

( offset 11, default = 00h )

R/O

R/O

R/O

R/O

R/O

R/O

R/O

VP

VM

-- C_PT_RST C_PT_ C_PT_ C_PT_EN C_PT_

OVCUR

SUS

CON

Bus state and Port status change indicator:

VP

: VP state on the downstream port

VM

C_PT_RST

C_PT_OVCUR

: VM state on the downstream port

: 1’b0 – No change, 1’b1 – Reset complete

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

: 1’b1 – over-current indicator has changed

C_PT_SUS

: 1’b0 – No change, 1’b1: – Resume complete

C_PT_EN

: Set to one when a port is disabled because of a Port_error

condition

C_PT_CON

: 1’b0 – No change has occurred to current connect status

: 1’b1 – Current connect status has changed

HOST_CMD

( offset 12, default = 0Fh )

W/O

W/O

W/O

W/O

W/O

W/O

W/O

W/O

HB_CMD3 HB_CMD2 HB_CMD1 HB_CMD0 PT_CMD3 PT_CMD2 PT_CMD1 PT_CMD0

Host command to the hub:

PT_CMD3~0 : 4’h0 –SetPortFeature(PORT_SUSPEND)

: 4’h1 –SetPortFeature(PORT_RESET)

: 4’h2 –SetPortFeature(PORT_POWER)

: 4’h3 –ClearPortFeature(PORT_ENABLE)

: 4’h4 –ClearPortFeature(PORT_SUSPEND)

: 4’h5 –ClearPortFeature(PORT_POWER)

: 4’h6 –ClearPortFeature(C_PORT_RESET)

: 4’h7 –ClearPortFeature(C_PORT_OVER_CURRENT)

: 4’h8 –ClearPortFeature(C_PORT_SUSPEND)

: 4’h9 –ClearPortFeature(C_PORT_ENABLE)

: 4’hA –ClearPortFeature(C_PORT_CONNECTION)

HB_CMD3

HB_CMD2

HB_CMD1

HB_CMD0

: 1’b1 –SetHubFeature(C_HUB_LOCAL_POWER)

: 1’b1 –SetHubFeature(C_HUB_OVER_CURRENT)

: 1’b1 –ClearHubFeature(C_HUB_LOCAL_POWER)

: 1’b1 –ClearHubFeature(C_HUB_OVER_CURRENT)

ENP2_IND

--

( offset 13, default = 00h )

--

--

--

R/O

R/O

R/O

R/O

PT3

PT2

PT1

HUB

12

03/06/00

Version 1.0

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