ISD-300A1 Cypress Semiconductor Corp, ISD-300A1 Datasheet - Page 22

• Manufacturer Part Number: ISD-300A1
• Description: IC USB 2.0 BRIDGE BULK 100LQFP
• Manufacturer: Cypress Semiconductor Corp

Specifications of ISD-300A1

• Applications: USB 2.0 to ATA/ATAPI Bridge
• Interface: ATA, ATAPI
• Voltage - Supply: 3 V ~ 3.6 V
• Package / Case: 100-LQFP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 428-1459

October 19, 2001
Number)
Number)
Address
(Config.
Address
(Config.
Table 7 – Standard Configuration Descriptor(s)
0x8A(2)
0x8B(2)
0x8C(2)
0x8D(2)
0x3A(1)
0x3B(1)
0x3C(1)
0x3D(1)
0x2E(1)
0x2F(1)
0x8E(2)
0x8F(2)
0x82(2)
0x83(2)
0x30(1)
0x84(2)
0x31(1)
0x85(2)
0x32(1)
0x86(2)
0x33(1)
0x87(2)
0x34(1)
0x88(2)
0x35(1)
0x89(2)
0x36(1)
0x37(1)
0x38(1)
0x39(1)
0x90(2)
0x91(2)
Other Speed Configuration Descriptor
This descriptor describes a configuration of a high-speed capable device if it were operating at its
other possible speed. Although two descriptors are not required to distinguish differences between
full speed and high speed operation, the ISD-300A1 supports two other speed configuration
descriptors to enumerate differences between VBUS powered and self powered operation. The
first configuration is returned when the VBUS_POWERED signal is active, the second
configuration when the VBUS_POWERED signal is inactive. Each configuration has one
interface that supports four endpoints. See the VBUS_POWERED section on page 38 for more
information.
bTotalLength (LSB)
bTotalLength (MSB)
bNumInterfaces
bConfiguration Value
iConfiguration
bmAttributes
bMaxPower
bLength
bDescriptorType
bTotalLength (LSB)
bTotalLength (MSB)
bNumInterfaces
bConfiguration Value
iConfiguration
bmAttributes
bMaxPower
Field Name
Field Name
Number of bytes returned in this configuration. This includes the
configuration descriptor plus all the interface and endpoint descriptors.
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 the 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
7
6
5
4-0 Reserved, set to 0. ‘0’
Maximum power consumption for this configuration. Units used are mA*2
(i.e. 0x31 = 98 mA, 0xF9 = 498 mA).
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.
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
7
6
5
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).
Reserved, set to 1. ‘1’
Self-powered.
Remote wake-up. ‘0’
Reserved, set to 1. ‘1’
Self-powered.
Remote wake-up. ‘0’
‘0’ for configuration 1, ‘1’ for configuration 2
‘0’ for configuration 1, ‘1’ for configuration 2
17
On-board default
On-board default
Description
Description
ISD-300A1
On-board
On-board
0xC0 (2)
0xC0 (2)
Defaults
0xF9 (1)
Defaults
0xF9 (1)
0x80 (1)
0x31 (2)
0x80 (1)
0x31 (2)
0x27
0x00
0x01
0x02
0x00
0x09
0x07
0x27
0x00
0x01
0x02
0x00