ISD-300A1 Cypress Semiconductor Corp, ISD-300A1 Datasheet - Page 39

• 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
Figure 3– ATA Command Block Flow Diagram
Read ATA Status to clear
INTRQ and ignore results
Set TransferLength = 0
DataTransferLength
< BlockSize*512?
Set ByteCount =
Note: DRQ and ERR
from last read of ATA
TransferLength
bit information come
yes
Alternate Status
Transfer ByteCount bytes specified by
register.
Direction in bmCBWFlags.
clear
set
set
DPErrorOverride
no
yes
yes
ATACB
DRQ
ERR
(0)
Set TransferLength =
clear
clear
Set ByteCount =
TransferLength -
(BlockSize*512)
(BlockSize*512)
TransferLength > 0
TransferLength > 0
Read ATA Status to clear
INTRQ and ignore results
set
34
A
B
DPErrorOverride
Phase
Fail
ATACB
DRQ
Error
(0)
C
no
set
set
clear
no
set
clear
clear
Read ATA Status to clear
INTRQ and ignore results
ERR
Read ERR Register
DPErrorOverride
page 2 of 2
ATACB
Done
(1)
clear
ISD-300A1
set