
ISD-300A1
60
October 19, 2001
Address
Field Name
Description
Example
SROM
Data
USB Other Speed Configuration Descriptor 2
Length of configuration descriptor in bytes.
Descriptor type.
Number of bytes returned in this configuration. This includes the
configuration descriptor plus all the interface and endpoint descriptors.
0x89
0x8A
0x8B
0x8C
0x8D
bLength
bDescriptorType
bTotalLength (LSB)
bTotalLength (MSB)
bNumInterfaces
0x09
0x07
0x27
0x00
0x01
Number of interfaces supported. The ISD-300A1 only supports one
interface.
The value to use as an argument to Set Configuration to select the
configuration. This value must be set to 0x02
Index to configuration string. This entry must equal half of the address
value where the string starts or 0 if the string does not exist.
Device attributes for this configuration. Configuration characteristics:
Bit Description On-board default
7 Reserved. ‘1’
6 Self-powered. ‘1’
5 Remote wake-up. ‘0’
4-0 Reserved, set to 0. ‘0’
Maximum power consumption for the second configuration. Units used
are mA*2 (i.e. 0x31 = 98 mA, 0xF9 = 498 mA).
USB String Descriptor (Manufacturer)
Descriptor length
Descriptor type
(“I”)
(“NUL”)
(“n”)
(“NUL”)
(“-”)
(“NUL”)
(“S”)
(“NUL”)
(“y”)
(“NUL”)
(“s”)
(“NUL”)
(“t”)
(“NUL”)
(“e”)
(“NUL”)
(“m”)
(“NUL”)
(“ ”)
(“NUL”)
(“D”)
(“NUL”)
(“e”)
(“NUL”)
(“s”)
(“NUL”)
(“i”)
(“NUL”)
(“g”)
0x8E
bConfiguration Value
0x02
0x8F
iConfiguration
0x00
0x90
bmAttributes
0xC0
0x91
bMaxPower
0x31
0x92
0x93
0x94
0x95
0x96
0x97
0x98
0x99
0x9A
0x9B
0x9C
0x9D
0x9E
0x9F
0xA0
0xA1
0xA2
0xA3
0xA4
0xA5
0xA6
0xA7
0xA8
0xA9
0xAA
0xAB
0xAC
0xAD
0xAE
0xAF
0xB0
bLength
bDescriptorType
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
0x22
0x03
0x49
0x00
0x6E
0x00
0x2D
0x00
0x53
0x00
0x79
0x00
0x73
0x00
0x74
0x00
0x65
0x00
0x6D
0x00
0x20
0x00
0x44
0x00
0x65
0x00
0x73
0x00
0x69
0x00
0x67