H8SXSLASH1663M datasheet(1020/1504 Pages) RENESAS

部件名	H8SX/1663M

功能描述	Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series

PDF	1504 Pages

Scroll/Zoom	100%

制造商	RENESAS [Renesas Technology Corp]

网页	http://www.renesas.com

标志

1020 / 1504 page

Section 20 USB Function Module (USB)

Rev. 2.00 Sep. 24, 2008 Page 988 of 1468

REJ09B0412-0200

Bit

Bit Name

Initial

Value

R/W

Description

EP1DMAE

R/W

Endpoint 1 DMA Transfer Enable

When this bit is set, a DMAC start interrupt signal

(USBINTN0) is asserted and DMA transfer is enabled

from the endpoint 1 receive FIFO buffer to memory. If

there is at least one byte of receive data in the FIFO

buffer, the DMAC start interrupt signal (USBINTN0) is

asserted. In DMA transfer, when all the received data

is read, EP1 is automatically read and the completion

trigger operates.

EP1-related interrupt requests to the CPU are not

automatically masked.

• Operating procedure:

1. Write of 1 to the EP1 DMAE bit in DMA

2. Set the DMAC to activate through USBINTN0

3. Transfer count setting in the DMAC

4. DMAC activation

5. DMA transfer

6. DMA transfer end interrupt generated

See section 20.8.2, DMA Transfer for Endpoint 1.

H8SX/1663M 数据表(PDF) 1020 Page - Renesas Technology Corp