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Renesas SH7641 User Manual

Page 24

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Rev. 4.00 Sep. 14, 2005 Page xxiv of l

20.4.4

EP1 Bulk-OUT Transfer (Dual FIFOs) ................................................................ 774

20.4.5

EP2 Bulk-IN Transfer (Dual FIFOs) .................................................................... 776

20.4.6

EP3 Interrupt-IN Transfer..................................................................................... 778

20.5

Processing of USB Standard Commands and Class/Vendor Commands .......................... 779

20.5.1

Processing of Commands Transmitted by Control Transfer ................................. 779

20.6

Stall Operations.................................................................................................................. 780

20.6.1

Forcible Stall by Application ................................................................................ 780

20.6.2

Automatic Stall by USB Function Module ........................................................... 782

20.7

DMA Transfer.................................................................................................................... 784

20.7.1

DMA Transfer for Endpoint 1 .............................................................................. 784

20.7.2

DMA Transfer for Endpoint 2 .............................................................................. 785

20.8

Example of USB External Circuitry .................................................................................. 786

20.9

USB Bus Power Control Method....................................................................................... 789

20.9.1

USB Bus Power Control Operation ...................................................................... 789

20.9.2

Usage Example of USB Bus Power Control Method ........................................... 790

20.10

Notes on Usage .................................................................................................................. 794

20.10.1

Receiving Setup Data ........................................................................................... 794

20.10.2

Clearing FIFO....................................................................................................... 794

20.10.3

Overreading or Overwriting Data Register ........................................................... 794

20.10.4

Assigning Interrupt Source for EP0 ...................................................................... 795

20.10.5

Clearing FIFO when Setting DMA Transfer ........................................................ 795

20.10.6

Manual Reset for DMA Transfer .......................................................................... 795

20.10.7

USB Clock ............................................................................................................ 795

20.10.8

Using TR Interrupt................................................................................................ 795

Section 21 A/D Converter ................................................................................. 797

21.1

Features.............................................................................................................................. 797

21.1.1

Block Diagram...................................................................................................... 798

21.1.2

Input Pins.............................................................................................................. 799

21.1.3

Register Configuration.......................................................................................... 800

21.2

Register Descriptions ......................................................................................................... 800

21.2.1

A/D Data Registers A to D (ADDRA0 to ADDRD0, ADDRA1 to ADDRD1) ... 800

21.2.2

A/D Control/Status Registers (ADCSR0, ADCSR1)............................................ 801

21.2.3

A/D0, A/D1 Control Register (ADCR) ................................................................ 804

21.3

Operation ........................................................................................................................... 805

21.3.1

Single Mode.......................................................................................................... 805

21.3.2

Multi Mode ........................................................................................................... 806

21.3.3

Scan Mode ............................................................................................................ 808

21.3.4

Simultaneous Sampling Operation ....................................................................... 809

21.3.5

A/D Converter Activation by MTU ...................................................................... 810

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