FDC37M607 datasheet(135/182 Pages) SMSC

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FDC37M607 Datasheet(PDF) 135 Page - SMSC Corporation

Part #	FDC37M607

Description	ENHANCED SUPER I/O CONTROLLER WITH INFRARED SUPPORT

PDF	182 Pages

Scroll/Zoom	100%

Manufacturer	SMSC [SMSC Corporation]

Direct Link	http://www.smsc.com

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135 / 182 page

135

Table 58 - DMA Channel Select Configuration Register Description

NAME

REG INDEX

DEFINITION

STATE

DMA Channel

Select

Default = 0x04

on Vcc POR or

Reset_Drv

0x74 (R/W)

Bits[2:0] select the DMA Channel.

0x00= Reserved

0x01= DMA1

0x02= DMA2

0x03= DMA3

0x04-0x07= No DMA active

Note:

A DMA channel is activated by setting the DMA Channel Select register to [0x01-0x03] AND :

for the FDC logical device by setting DMAEN, bit D3 of the Digital Output Register.

for the PP logical device in ECP mode by setting dmaEn, bit D3 of the ecr.

Note:

DMAREQ pins must tri-state if not used/selected by any Logical Device. Refer to Note A.

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