UPD720133 Просмотр технического описания (PDF) - NEC => Renesas Technology

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производитель

UPD720133

USB2.0 to IDE Bridge

NEC => Renesas Technology 

µPD720133

2. FUNCTION INFORMATION

The USB to IDE system can be realized by µPD720133. If the customizations of data such as USB vendor ID and

USB product ID are required, an external serial ROM can be used. The µPD720133 also has power circuit to turn on

and off the system power supply. The µPD720133 can operate in either bus-powered mode or self-powered mode. If

the total power consumption of the USB to IDE system within the USB 2.0 specification of a bus powered device, it will

be possible to realize a high-speed capable bus powered system. In addition, µPD720133 has a feature of IDE bus

arbitration. This enables system, which has two IDE controllers to control a single IDE device. In this case, another IDE

controller also must have a feature of IDE bus arbitration.

The setting of IDE controller in the µPD720133 is controlled by data in serial ROM.

2.1 Data in Serial ROM

The µPD720133 loads some data such as Vendor ID, Product ID and some additional USB related information,

etc from serial ROM during µPD720133 initialization.

Table 2-1. Data in Serial ROM

Offset (H)

+00

+02

+04

+06

+07

+08

+0A

+0C

+0E

+10

+11

+12

+13

+14

+15

+16

+18

+1A

+1C

+20

+40

+60

+80

Data Size

1 Word

1 Word

1 Word

1 Byte

1 Byte

1 Word

1 Word

1 Word

1 Word

1 Byte

1 Byte

1 Byte

1 Byte

1 Byte

1 Byte

1Word

1Word

1Word

4 Bytes

32 Bytes

32 Bytes

32 Bytes

128 × n Bytes

Symbol

idMark

CheckSum

Flags

ModeReset

ModeSet

idVendor

idProduct

bcdDevice

Reserved

MaxPower Bus

MaxPower Self

bInterfaceClass

bInterfaceSubClass

bInterfaceProtocol

Reserved

TxModeReset

TxModeSet

RompatchSW

Reserved

ManufactureString

ProductString

SerialString

FW Patch

Description

Validation Mark of 55AAH

Check sum of serial ROM

Control for descriptor overwrite

PWR, CLC, DCC, DV[1:0], DPC Reset bit map field

PWR, CLC, DCC, DV[1:0], DPC Set bit map field

idVendor field in Device descriptor

idProduct field in Device descriptor

bcdDevice field in Device descriptor

Reserved for future use.

bMaxPower field in Configuration descriptor for Bus powered mode

bMaxPower field in Configuration descriptor for Self powered mode

bInterfaceClass field in Interface descriptor

bInterfaceSubClass field in Interface descriptor

bInterfaceProtocol field in Interface descriptor

Reserved for future use.

IDE transmission type such as Ultra DMA 66 Reset bit map field

IDE transmission type such as Ultra DMA 66 Set bit map field

ROM Patch information (Patch On or Off) of External Function

Reserved for future use.

String descriptor for Manufacturer

String descriptor for Product

String descriptor for Device serial number

Firmware patch module for self-powered/bus-powered mode

6

Preliminary Data Sheet S17100EJ2V0DS

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