ISP1160BD/01,157 NXP Semiconductors, ISP1160BD/01,157 Datasheet - Page 19
ISP1160BD/01,157
Manufacturer Part Number
ISP1160BD/01,157
Description
Manufacturer
NXP Semiconductors
Datasheet
1.ISP1160BD01157.pdf
(87 pages)
Specifications of ISP1160BD/01,157
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Compliant
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Table 4.
ISP1160-01_7
Product data sheet
Bit
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Proprietary Transfer Descriptor (PTD): bit allocation
9.3.1 PTD data header definition
Format
7
reserved
The PTD data structure is used by the HC to define a buffer of data that will be moved to
or from an endpoint in the USB device. This data buffer is set up for the current frame
(1 ms frame) by the HCD. The payload data for every transfer in the frame must have a
PTD as the header to describe the characteristic of the transfer. The PTD data is DWORD
(double-word or 4-byte) aligned.
The PTD forms the header of the PTD data. It tells the HC the transfer type, where the
payload data should go, and the actual size of the payload data. A PTD is an 8-byte data
structure that is very important for HCD programming.
Fig 16. PTD data in FIFO buffer RAM.
CompletionCode[3:0]
EndpointNumber[3:0]
6
B5_5
5
Rev. 07 — 29 September 2009
bottom
top
reserved
MaxPacketSize[7:0]
ActualBytes[7:0]
4
TotalBytes[7:0]
reserved
FIFO buffer RAM
FunctionAddress[6:0]
payload data
payload data
payload data
PTD
PTD
PTD
Active
Last
DirectionPID[1:0]
3
MGT949
PTD data #1
PTD data #2
PTD data #N
Toggle
Speed
Embedded USB host controller
2
ISP1160/01
MaxPacketSize[9:8]
© ST-ERICSSON 2009. All rights reserved.
ActualBytes[9:8]
1
TotalBytes[9:8]
0
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