38K2 datasheet(70/358 Pages) RENESAS

70 / 358 page

FUNCTIONAL DESCRIPTION

Rev.2.00

Oct 15, 2006

page 51 of 130

38K2 Group

REJ09B0338-0200

HARDWARE

Fig. 70 Structure of EP03 byte number register 0

Fig. 72 Structure of EP03 MAX. packet size register

Fig. 71 Structure of EP03 byte number register 1

B0BYT03

[6:0]

–

EP03 byte number register 0 (EP03BYT0) [address 001E16]

Bit name

Bit symbol

At reset

Function

H/W

S/W

IN : Transmit byte number bit

OUT : Receive byte number bit

Not used

–: State remaining

Single buffer mode: Set the transmitting byte number.

Double buffer mode : Set the transmitting byte number

of buffer 0.

Single buffer mode: The received byte number is

automatically set.

Double buffer mode : The received byte number of buffer 0

is automatically set.

Write “0” when writing.

“0” is read when reading.

B1BYT03

[6:0]

–

EP03 byte number register 1 (EP03BYT1) [address 001F16]

Bit name

Bit symbol

At reset

Function

H/W

S/W

IN : Transmit byte number bit

OUT : Receive byte number bit

Not used

–: State remaining

Single buffer mode: These bits are invalid.

Double buffer mode : Set the transmitting byte number

of buffer 1.

Single buffer mode: These bits are invalid.

Double buffer mode : The received byte number of buffer 1

is automatically set.

Write “0” when writing.

“0” is read when reading.

MXPS03

[6:0]

EP03 MAX. packet size register (EP03MAX) [address 0FEC16]

–

Bit name

Bit symbol

At reset

Function

H/W

S/W

–: State remaining

Max. packet size bit

Not used

IN : These bits are invalid.

OUT : Set the maximum packet size.

Write “0” when writing.

“0” is read when reading.

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