ISP1582BS ST-Ericsson Inc, ISP1582BS Datasheet - Page 31

• Manufacturer Part Number: ISP1582BS
• Description: IC USB CTRL HI-SPEED 56HVQFN
• Manufacturer: ST-Ericsson Inc

Specifications of ISP1582BS

• Applications: USB Host/Peripheral Controller
• Interface: USB
• Voltage - Supply: 3 V ~ 3.6 V
• Package / Case: 56-VQFN Exposed Pad, 56-HVQFN, 56-SQFN, 56-DHVQFN
• Mounting Type: Surface Mount
• For Use With: ISP1582 PCI EVALKIT - PCI BUS EVAL KIT ISP1582
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
AN10039_4
Application note
Fig 16. ATAPI read phase
DMA command regiser
set transfer error flag
Write to the DMA Command register with the DMA or
= DMA_FLUSH
Read the DMA transfer counter to check for partial
Initialize the DMA Transfer Counter register to
Initialize the Endpoint Index register to the IN
transfer. A nonzero value indicates partial
Yes
Read the Command or Status Task
CBW.dCBWDataTransferLength
Clear INTRQ_PENDING
INTRQ_PENDING == 0
INTRQ_PENDING == 1
CMD_INTRQ_OK == 0
CMD_INTRQ_OK == 0
PIO Read command
CMD_INTRQ_OK
CMD_INTRQ_OK
Partial transfer
File register
endpoint
transfer.
Clear
Stop
== 0
Start
AND
AND
No
Yes
No
No
Yes
Yes
Rev. 04 — 21 December 2006
Clear INTRQ_PENDING
Clear CMD_INTRQ_OK
DMA Interrupt Reason register: bit allocation
Yes
INTRQ_PENDING are from a variable
to which the DMA Interrupt Reason
register is copied in the interrupt
No
INTRQ_PENDING == 1
CMD_INTRQ_OK == 1
Bits CMD_INTRQ_OK and
ISP1582/83 Firmware Programming Guide
AND
routine
Yes
Clear INTRQ_PENDING
INTRQ_PENDING == 0
Clear CMD_INTRQ_OK
CMD_INTRQ_OK == 0
CMD_INTRQ_OK
Clear
AND
No
No
AN10039
© NXP B.V. 2006. All rights reserved.
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