M66290AFP datasheet(10/54 Pages) RENESAS

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USB DEVICE CONTROLLER

M66290AGP/FP

MITSUBISHI <DIGITAL ASSP>

Reset

Function

Name

Bit

W/R

Select the renewal timing of the flame number to be stored

to FRNM[10:0].

0 : Renew the flame number when SOF is received .

1 : In isochronous transfer, renew the flame number at the

timing of the end of transaction.

Frame number

mode

FMOD

000h

W/R

Write/Read "0"

Stores the flame number.

The timing to renew the stored flame number is selectable by set

FMOD.

Frame number

10 to 0

13 to 12

FRNM

[10:0]

Reserved

In isochronous transfers(OUT), if the received data has CRC or

bit stuffing error, this flag is set at the timing of the end of transaction.

When a state above is occurred, endpoint buffer notready interrupt is

occurred.

When "0" is written, status flag is cleared.

When "1" is written, flag is not changed.

Receive data error

CRCE

W/R

In isochronous transfers (OUT/IN), when over-run or under-run is

occurred to the endpoint buffer, this flag is set at the timing of the

receive end of the OUT/IN token packet.

Over run is occurred when delayed to read the received data from

the endpoint buffer, and means that could not received. Over run is

occurred when the direction of transmission is OUT.

Also the received data has CRC or bit stuffing error, this flag is set.

Under run is occurred when delayed to write the transmit data into the

endpoint buffer, and means that could not transmitted. Under-run is

occurred when the direction of transmission is IN.

When a state above is occurred, endpoint buffer notready interrupt is

occurred.

When "0" is written, status flag is cleared.

When "1" is written, flag is not changed.

OVRN

Over run error

Bit

Name

W/R

USB

S/W

H/W

FMOD

CRCE

OVRN

FRNM[10:0]

D10

D11

D12

D15

D13

D14

(1-5) Isochronous Status Register (Address : 0Ah)

M66290AFP Datasheet(PDF) 10 Page - Renesas Technology Corp

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