CL-PD6833 View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CL-PD6833

PCI-to-CardBus Host Adapter

Cirrus Logic 

CL-PD6833

PCI-to-CardBus Host Adapter

13.9 Request Register

Register Name: Request Register

I/O Index: 9h

Register Per: socket

Register Compatibility Type: DMA

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Reserved

Set Request

Reserved

R:00000

W:0

R:00

This register is similar to the request register of the Intel 8237. Reads from this register are undefined and

only the set request bit has any meaning for this implementation.

Bits 1:0 — Reserved

Bit 2 — Set Request

If the transfer mode bits are set to do block transfers, this bit initiates transfers with no hardware

request present on the PC Card interface.

Bits 7:3 — Reserved

176

DMA OPERATION REGISTERS

ADVANCE DATA BOOK v0.3

June 1998

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