Cypress Semiconductor CY7C68301C Uživatelský manuál stáhnout pdf (Strana 31)

CY7C68300C, CY7C68301C

CY7C68320C, CY7C68321C

Document Number: 001-05809 Rev. *K Page 31 of 44

0x8B bAlternateSetting Value used to select an alternate setting for the interface

identified in prior field

0x00

0x8C bNumEndpoints Number of endpoints used by this interface (excluding

endpoint 0) that are CSM dependent

0x02

0x8D bInterfaceClass 0x0D

0x8E bInterfaceSubClass Must be set to zero 0x00

0x8F bInterfaceProtocol Must be set to zero 0x00

0x90 iInterface Index of a string descriptor that describes this Interface 0x00

Channel Descriptor

0x91 bLength Length of this descriptor in bytes 0x09

0x92 bDescriptorType Channel descriptor type 0x22

0x93 bChannelID Number of the channel must be a zero-based value that is

unique across the device

0x00

0x94 bmAttributes Bits7:5

Reserved. Must be set to zero

0x01

Bits 4:0

0x95 bRecipient Identifier of the target recipient

If Recipient type field of bmAttributes = 1 then

bRecipient field is the bInterfaceNumber

If Recipient type field of bmAttributes = 2 then

bRecipient field is an endpoint address, where:

D7: Direction (0 = Out, 1 = IN)

D6...D4: Reserved and set to zero

D3...D0: Endpoint number

0x00

0x96 bRecipientAlt Alternate setting for the interface to which this channel applies 0x00

0x97 bRecipientLogicalUnit Recipient Logical Unit 0x00

0x98 bMethod Index of a class-specific CSM descriptor that describes one of

the Content Security Methods (CSM) offered by the device

0x01

0x99 bMethodVariant CSM variant descriptor 0x00

CSM Descriptor

0x9A bLength Byte length of this descriptor 0x06

0x9B bDescriptorType CSM descriptor type 0x23

0x9C bMethodID Index of a class-specific CSM descriptor that describes on of

the Content Security Methods offered by the device

0x01

0x9D iCSMDescriptor Index of string descriptor that describes the Content Security

Method

0x00

0x9E bcdVersion (LSB) CSM descriptor version number 0x10

0x9F bcsVersion (MSB) 0x02

0xA0 Terminator 0x00

USB String Descriptor–Index 0 (LANGID)

0xA1 bLength LANGID string descriptor length in bytes 0x04

0xA2 bDescriptorType Descriptor type 0x03

0xA3 LANGID (LSB) Language supported. The CY7C68300B supports one

LANGID value.

0x09

0xA4 LANGID (MSB) 0x04

Table 11. Configuration Data Organization (continued)

Byte

Address

Configuration

Item Name

Configuration

Item Description

Required

Contents

Variable

Contents

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 43 44

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