H8SXSLASH1663 datasheet(826/1158 Pages) RENESAS

Teilenummer	H8SX/1663

Bauteilbeschribung	Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series

PDF	1158 Pages

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Hersteller	RENESAS [Renesas Technology Corp]

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Section 16 USB Function Module (USB)

Rev.1.00 Jun. 07, 2006 Page 774 of 1102

REJ09B0294-0100

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 16.8.2, DMA Transfer for Endpoint 1.

H8SX/1663 Datenblatt(PDF) 826 Page - Renesas Technology Corp