MSM98R000 View Datasheet(PDF) - Oki Electric Industry

Part Name

Description

Manufacturer

MSM98R000

W712 Universal Serial Bus Controller 0.5µm Technology Mega Macrofunction

Oki Electric Industry 

s W712 USB Device Controller s –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

SIGNAL DESCRIPTIONS

USB Interface

Signal

usb_dpin

usb_dmin

usb_dpout

usb_dmout

usb_rxd

usb_txenb

Type

Input

Input

Output

Output

Input

Output

Assertion

Description

USB Data Plus In. This input and the usb_dmin input are the received single ended data

from the USB transceiver. The table below shows values and results for these signals.

usb_dpin

—

0

0

1

1

usb_dmin

0

1

0

1

Result

SE0

Logic “0”

Logic “1”

Undefined

USB Data Minus In. This input and the usb_dpin input are the received single ended data

—

from the USB transceiver. See the table for the usb_dpin description, above, for values

and results of these signals.

USB Data Plus Out. This output and the usb_dmout signal come from the USB transmit

engine and drive the differential output buffers. The table below shows values and results

for these signals.

usb_dpout

—

0

0

1

1

usb_dmout

0

1

0

1

Result

SE0

Logic “0”

Logic “1”

Undefined

USB Data Minus Out. This output and the usb_dpout signal come from the USB transmit

—

engine and drive the differential output buffers. See the signal description for usb_dpout,

above, for a description of signal values and results.

—

USB Differential Received Data. This input comes from the USB differential receiver, and

connects to the W712 mega macrofunction.

USB 3-State Output Enable. This signal connects to the transceiver EB input through an

LOW inverter gate. When the W712 mega macrofunction asserts this signal LOW, the transceiv-

er transmits data on the USB bus. See Appendix for the USB transceiver Data Sheets.

4

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