ISP1582BSUM ST-Ericsson Inc, ISP1582BSUM Datasheet - Page 32

• Manufacturer Part Number: ISP1582BSUM
• Description: IC USB PERIPH CONTROLLER 56HVQFN
• Manufacturer: ST-Ericsson Inc

Specifications of ISP1582BSUM

• 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
• Other names: 568-1885-2; ISP1582BS,518; ISP1582BS-T

NXP Semiconductors
AN10039_4
Application note
Fig 17. ATAPI status phase
Set Error_Occur flag
Read the Command or Status
Clear INTRQ_PENDING
Yes
Task File register
Yes
Yes
Read alternate Status or Device
Alternate Status or Device
Control Task File register
Control Task File register
AND 0x01 == 1
INTRQ_PENDING == 1
CMD_INTRQ_OK == 0
INTRQ_PENDING == 0
CMD_INTRQ_OK == 0
Stop
AND
Start
AND
No
Rev. 04 — 21 December 2006
Reset Error_Occur
Clear INTRQ_PENDING
Clear CMD_INTRQ_OK
Clear CMD_INTRQ_OK
INTRQ_PENDING == 1
INTRQ_PENDING == 1
CMD_INTRQ_OK == 1
CMD_INTRQ_OK == 1
flag
No
AND
AND
Yes
No
CMD_INTRQ_OK refer to the variable to
which DMA Interrupt Reason register is
ISP1582/83 Firmware Programming Guide
copied in the interrupt routine
Bits INTRQ_PENDING and
No
Clear INTRQ_PENDING
Clear CMD_INTRQ_OK
AN10039
Yes
© NXP B.V. 2006. All rights reserved.
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