ISP1183BSTM STEricsson, ISP1183BSTM Datasheet - Page 21

• Manufacturer Part Number: ISP1183BSTM
• Manufacturer: STEricsson

Specifications of ISP1183BSTM

• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 32
• Lead Free Status / RoHS Status: Compliant

ISP1183_3
Product data sheet
10.4.2 Isochronous endpoints
Table 10.
[1]
A DMA transfer to or from an isochronous endpoint can be terminated by any of the
following conditions (for bit names, see the DMA Function and Scratch register in
and the DMA Configuration register in
Table 11.
EOT condition
DMA Counter register
Short packet
DMAEN bit in the DMA
Function and Scratch register
EOT condition
DMA Counter register zero
Clear DMAEN bit
•
•
The DMA transfer stops. No interrupt, however, is generated.
The DMA transfer completes as programmed in the DMA Counter register
(CNTREN = 1).
DMA operation is disabled by clearing bit DMAEN.
Summary of EOT conditions for a bulk endpoint
Recommended EOT usage for isochronous endpoints
Rev. 03 — 20 January 2009
OUT endpoint
transfer completes as
programmed in the DMA
Counter register
short packet is received and
transferred
DMAEN = 0
OUT endpoint
do not use
preferred
Low-power USB Peripheral Controller with DMA
Table
[1]
32):
IN endpoint
transfer completes as
programmed in the DMA
Counter register
counter reaches zero in the
middle of the buffer
DMAEN = 0
IN endpoint
preferred
do not use
© ST-NXP Wireless 2009. All rights reserved.
[1]
ISP1183
Table 30
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