38K2 datasheet(314/358 Pages) RENESAS

314 / 358 page

3.4 List of registers

Rev.2.00

Oct 15, 2006

page 53 of 99

38K2 Group

REJ09B0338-0200

APPENDIX

Fig. 3.4.38 Structure of EP03 interrupt source register

B0RDY03

B1RDY03

ERR03

b7:b3

–

EP03 interrupt source register (EP03REQ) [address 001D16]

Bit name

Bit symbol

At reset

Function

H/W

S/W

USB function/Endpoint 3 buffer 0

ready interrupt bit

USB function/Endpoint 3 buffer 1

ready interrupt bit

USB function/Endpoint 3 error

interrupt bit

Not used

0 : No interrupt request issued

1 : Interrupt request issued

This bit is set to “1” when the buffer 0 is ready state

(enabled to be read/written) on USB function/Endpoint 3.

“0” can be set by software, but “1” cannot be set.

0 : No interrupt request issued

1 : Interrupt request issued

In single buffer mode this bit is invalid.

This bit is set to “1” when the buffer 1 is ready state

(enabled to be read/written) on USB function/Endpoint 3

in double buffer mode.

“0” can be set by software, but “1” cannot be set.

0 : No interrupt request issued

1 : Interrupt request issued

This bit is set to “1” when STALL response occurs on

USB function/Endpoint 3.

“0” can be set by software, but “1” cannot be set.

Write “0” when writing.

“0” is read when reading.

0000

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