ISP1582BS ST-Ericsson Inc, ISP1582BS Datasheet - Page 30

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