H8SXSLASH1663R datasheet(1024/1504 Pages) RENESAS

1024 / 1504 page

Section 20 USB Function Module (USB)

Rev. 2.00 Sep. 24, 2008 Page 992 of 1468

REJ09B0412-0200

20.3.25

Endpoint Information Register (EPIR)

This register sets the information for each endpoint. Each endpoint needs five bytes to store the

information. Writing data should be done in sequence starting at logical endpoint 0. Do not write

data of more than 50 bytes (five bytes multiplied by ten endpoints) to this register. The

information should be written to this register only once at reset and no data should be written after

that. Description of writing data for one endpoint is shown below.

Although this register consists of one register to which data is written sequentially for one address,

the write data for the endpoint 0 is described as EPIR00 to EPIR05 (EPIR endpoint number in

write order) to make the explanation understood easier. Write should start at EPIR00.

Bit

Bit Name

Initial Value

R/W

Undefined

• EPIR00

Bit

Bit Name

Initial

Value

R/W

Description

7 to 4

D7 to D4

Undefined

Endpoint Number

[Enable setting range]

0 to 3

3, 2

D3, D2

Undefined

Endpoint Configuration Number

[Enable setting range]

0 or 1

1, 0

D1, D0

Undefined

Endpoint Interface Number

[Enable setting range]

0 to 3

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