USBN9604 datasheet(3/60 Pages) NSC | Universal Serial Bus Full Speed Node Controller with Enhanced DMA Support

3 / 60 page

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Table of Contents

1.0

Signal/Pin Connection and Description

1.1

CONNECTION DIAGRAMS ........................................................................................................ 6

1.2

DETAILED SIGNAL/PIN DESCRIPTIONS .................................................................................. 7

1.2.1

Power Supply ................................................................................................................ 7

1.2.2

Oscillator, Clock and Reset ........................................................................................... 7

1.2.3

USB Port ....................................................................................................................... 8

1.2.4

Microprocessor Interface ............................................................................................... 8

2.0

Functional Overview

2.1

TRANSCEIVER ......................................................................................................................... 10

2.2

VOLTAGE REGULATOR (VREG) ............................................................................................. 10

2.3

SERIAL INTERFACE ENGINE (SIE) ......................................................................................... 10

2.4

ENDPOINT PIPE CONTROLLER (EPC) ................................................................................... 12

2.5

MICROCONTROLLER INTERFACE ......................................................................................... 12

3.0

Parallel Interface

3.1

NON-MULTIPLEXED MODE ..................................................................................................... 13

3.1.1

Standard Access Mode ............................................................................................... 14

3.1.2

Burst Mode .................................................................................................................. 14

3.1.3

User Registers .............................................................................................................14

3.2

MULTIPLEXED MODE .............................................................................................................. 15

4.0

Direct Memory Access (DMA) Support

4.1

STANDARD DMA MODE (DMA) ............................................................................................... 16

4.2

AUTOMATIC DMA MODE (ADMA) ........................................................................................... 17

5.0

MICROWIRE/PLUS Interface

5.1

OPERATING COMMANDS ....................................................................................................... 19

5.2

READ AND WRITE TIMING ...................................................................................................... 20

6.0

Functional Description

6.1

FUNCTIONAL STATES ............................................................................................................. 22

6.1.1

Line Condition Detection ............................................................................................. 22

6.1.2

Functional State Transition .......................................................................................... 22

6.2

ENDPOINT OPERATION .......................................................................................................... 24

6.2.1

Address Detection ....................................................................................................... 24

6.2.2

Transmit and Receive Endpoint FIFOs ....................................................................... 24

6.2.3

Programming Model .................................................................................................... 28

6.3

POWER SAVING MODES ........................................................................................................ 28

6.4

CLOCK GENERATION .............................................................................................................. 29

7.0

7.1

CONTROL REGISTERS ........................................................................................................... 30

7.1.1

Main Control Register (MCNTRL) ............................................................................... 30

USBN9604 Datasheet(PDF) 3 Page - National Semiconductor (TI)

USBN9604 Datasheet(HTML) 3 Page - National Semiconductor (TI)

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