M66290AFP datasheet(39/54 Pages) RENESAS

39 / 54 page

USB DEVICE CONTROLLER

M66290AGP/FP

MITSUBISHI <DIGITAL ASSP>

Appoint the first number of the buffer of a unit of 64Bytes.

Buffer exists from #00h to #2Fh.

Buffer size(double of the buffer size in double buffer mode), which is

appointed from the first, is secured for endpoint buffer.

Set that plural of endpoint do not occupy the same buffer area.

If "1" is written into this bit, continuous transfer mode of endpoint is set.

When the direction of endpoint is set to OUT, then it is set to continuous

receive mode. And when the direction of endpoint is set to IN, then it is

set to continuous transmit mode.

Continuous receive mode can receive data packet up to the buffer size

which is set, or can receive continuously before receives short packet.

Continuous transmit mode can transmit data packet up to the buffer size

which is set, and transmission of short packet can be done by set the

IVAL flag.

In data packet (max packet size) receive which is less than buffer

size, interrupt to CPU does not occur.

Continuous transfer mode is effective only in bulk transfer.

Function

Name

Bit

Name

Bit

Reset

W/R

Continuous

transfer mode

(only for Bulk

transfer)

W/R

Set the constitution of endpoint buffer.

0 : Single buffer mode

1 : Double buffer mode

In double buffer mode, double of the buffer size is taken as the endpoint

buffer.

Double buffer mode

EPi_DBLB

W/R

0000

W/R

00h

W/R

EPi_

RWMD

Set endpoint buffer size at a unit of 64Bytes.

"0000"=64Bytes, "0001"=128Bytes, ...., "1110"=960Bytes,

"1111"=1024Bytes

To set the sequence toggle bit mode of interrupt transfer.

0 : Alternation data toggle bit mode

(Only toggled when transfer completed with no problem)

1 : Continuous toggle bit mode

(Whatever the hand shake exists or the types are, it toggles

every time when data packet is transmitted )

This is effective when endpoint is set to interrupt(IN) transfer.

To set the transfer direction of endpoint

0 : OUT (receive data from host)

1 : IN (transmit data to host)

When changed the state of transfer direction, clear (EPi_ACLR)

the endpoint buffer.

To set the transfer type of endpoint.

00 : not Configured

01 : bulk transfer

10 : interrupt transfer

11 : isochronous transfer

Buffer start number

EPi_Buf_

Nmb[5:0]

Buffer size

EPi_Buf_

siz[3:0]

Interrupt toggle

mode

EPi_ITMD

Transfer direction

EPi_DIR

Transfer type

EPi_TYP

[1:0]

11 to 8

5 to 0

15 to 14

W/R

USB

S/W

H/W

RWMD

DBLB

EPi_TYP[1:0]

DIR

ITMD

EPi_Buf_siz[3:0]

EPi_Buf_Nmb[5:0]

D10

D11

D12

D15

D13

D14

(4-7) EPi Configuration Register 0 ( i=1 to 5)

(Address : EP1=60h, EP2=64h, EP3=68h, EP4=6Ch, EP5=70h)

The EPi configuration register 0 must be set in a state of response PID is NAK("00").

M66290AFP Datasheet(PDF) 39 Page - Renesas Technology Corp

M66290AFP Datasheet(HTML) 39 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

Datasheet Download

Link URL