ISD-300A1 Cypress Semiconductor Corp, ISD-300A1 Datasheet - Page 34
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ISD-300A1
Manufacturer Part Number
ISD-300A1
Description
IC USB 2.0 BRIDGE BULK 100LQFP
Manufacturer
Cypress Semiconductor Corp
Datasheet
1.ISD-300A1.pdf
(67 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ISD-300A1
Manufacturer:
CYP
Quantity:
20 000
October 19, 2001
ATA Initialization Timeout
ISD-300A1 internal ROM has a default configuration value of 8.2 seconds for ATA Initialization Timeout.
When I_MODE operation is utilized, the default ATA Initialization Timeout value is used to retrieve FBh
data. Once the vendor specific Identify (FBh) command completes, the default value is overridden with the
FBh data value.
If an I
Initialization Timeout value is loaded from the I
Reset Recovery is 3 ms. Figure 2 graphically defines “Initialization Timeout” and “Reset Recovery”.
Figure 2 – ATA Reset Protocol
2
C memory device is utilized for ISD-300A1 configuration and USB descriptor data, the ATA
ATA_NRESET
nDIOR/nDIOW
reset assertion
reset recovery
2
C memory device prior to any ATA interface activity.
29
initialization
timeout
ISD-300A1