PEB20534H-52 datasheet(5/442 Pages) SIEMENS

Part #	PEB20534H-52

Description	DMA Supported Serial Communication Controller with 4 Channels DSCC4

Download	442 Pages

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Manufacturer	SIEMENS [Siemens Semiconductor Group]

Direct Link	http://www.siemens.com/

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5 / 442 page

PEB 20534

Table of Contents

Page

Semiconductor Group

5

Data Sheet 09.98

1

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

1.1

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

1.2

Differences Between the DSCC4 and the ESCC Family . . . . . . . . . . . . . . .22

1.2.1

Enhancements to the ESCC Serial Core . . . . . . . . . . . . . . . . . . . . . . . . .22

1.2.2

Simplifications to the ESCC Serial Core . . . . . . . . . . . . . . . . . . . . . . . . .22

1.3

Logic Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

1.4

Typical Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

1.4.1

Application Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

1.4.1.1

HSSI Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

1.4.1.2

HSSI Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

1.4.1.3

General Data Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

2

Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

2.1

Pin Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

2.2

Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

3

Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

4

Microprocessor Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

4.1

PCI Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

4.1.1

Supported PCI Transactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

4.1.2

PCI Configuration Space Register Overview . . . . . . . . . . . . . . . . . . . . . .52

4.2

De-multiplexed Bus Interface Extension . . . . . . . . . . . . . . . . . . . . . . . . . . .53

5

DMA Controller and Central FIFOs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

5.1

DMAC Operational Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

5.1.1

DMAC Register Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

5.1.2

DMAC Control and Data Structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

5.1.2.1

DMAC Transmit Descriptor Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66

5.1.2.2

DMAC Receive Descriptor Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

5.1.2.3

DMAC Operation Using Hold-Bit Control Mechanism . . . . . . . . . . . . .76

5.1.2.4

DMAC Operation Using Last Descriptor Address Control Mode . . . . .78

5.1.3

DMAC Interrupt Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81

5.2

Central FIFOs Operational Description . . . . . . . . . . . . . . . . . . . . . . . . . . . .85

5.2.1

Central FIFO Register Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85

5.2.2

Central Transmit FIFO (TFIFO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89

5.2.3

Central Receive FIFO (RFIFO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92

5.2.4

DMAC Internal Arbitration Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93

5.2.5

DMAC Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94

5.2.6

Little / Big Endian Byte Swap Convention . . . . . . . . . . . . . . . . . . . . . . . .95

6

Multi Function Port (MFP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96

6.1

Local Bus Interface (LBI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98

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