M66290AFP datasheet(13/54 Pages) RENESAS

No. de pieza	M66290AFP

Descripción Electrónicos	USB DEVICE CONTROLLER

PDF	54 Pages

Scroll/Zoom	100%

Fabricante Electrónico	RENESAS [Renesas Technology Corp]

Página de inicio	http://www.renesas.com

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USB DEVICE CONTROLLER

M66290AGP/FP

MITSUBISHI <DIGITAL ASSP>

Figure 2. shows the examples of interrupt output timing

(1) Endpoint buff er ready interrupt (ex.OUT transaction)

USB

PID

SYNC

Addr Endp CRC EOP

SYNC

PID

DATA

CRC EOP

SYNC

PID

EOP

OUT token packet

Data packet

Hand shake packet (ACK)

INT output

Buff er becomes ready (read enable)

and interrupt occurs

(2) Endpoint buff er not ready interrupt (ex.OUT transaction)

USB

PID

SYNC

Addr Endp CRC EOP

SYNC

PID

DATA

CRC EOP

SYNC

PID

EOP

OUT token packet

Data packet

Hand shake packet (NAK)

INT output

Buff er is in not ready (receiv e disable)

and interrupt occurs

(3) Endpoint buff er not ready interrupt (ex.IN transaction)

USB

PID

SYNC

Addr Endp CRC EOP

SYNC

PID

EOP

IN token packet

Hand shake packet (NAK)

INT output

Buff er is in not ready (transmit disable)

and interrupt occurs

Figure 2. Examples of interrupt output timing

M66290AFP Datasheet(PDF) 13 Page - Renesas Technology Corp

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