M66290AFP datasheet(3/54 Pages) RENESAS

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USB DEVICE CONTROLLER

M66290AGP/FP

MITSUBISHI <DIGITAL ASSP>

Xin

INT

Dreq

D+

D-

GND

2 15 36

Clock

Control

(Oscillator/

PLL)

Serial

Interface

Engine

Device

Control

Unit

A6 to 1

CPU

Endpoint

Buffer

(3KByteFIFO)

USB

Peripheral

Circuit

Dack

VCC

1 16 35

Vbus

T rON

Xout

D15 to 0

RST

TEST2

TEST1

TRST

TCK

T MS

TDI

TDO

BLOCK DESCRIPTIONS

The M66290A contains USB transceiv er, oscillation

circuit, PLL, serial interf ace engine, endpoint buff er,

dev ice control unit, and CPU register.

USB Transceiv er

USB Transceiv er is consisted of diff erential driv er

and diff erential receiv er.

And is compatible with USB specif ication v ersion 1.1

and corresponds to Full Speed Transf er mode.

Serial Interf ace Engine (SIE)

SIE handles protocol lay er as f ollows.

Extract a USB 12MHz clock

Serial-Parallel data conv ersion

SYNC detection

NRZI encode and decode

Bit stuff ing and destuff ing

CRC generator and checker

Dev ice Control Unit (DCU)

DCU controls the dev ice state sequence, control

transf er sequence, and so on.

Endpoint Buff er

This is a FIFO buff er f or transmit and receive

between endpoints.

Except f or EP0 f or control transf er, f iv e endpoints

(EP1 to EP5) can be set.

CPU Register

This is an interf ace block with CPU.

Oscillator/PLL

This block oscillates the internal operation clock

source of 48MHz.

External clock of 6/12/24/48MHz can be input.

USB peripheral circuit

Detect the connection and the shutdown of USB

by the Vbus input.

Connect the Vbus of U SB bus to or the 5V power

supply to Vbus input.

Connect the TrON output to D+ pull-up resistor of

1.5kohm. ON/OFF of the pull-up resistor is controlled

by the register.

BLOCK DIAGRAM

USB

Transceiver

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