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參數(shù)資料
| 型號： | ISP1362 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Single-chip Universal Serial Bus On-The-Go controller |
| 中文描述： | 單芯片通用串行總線和On - The - Go控制器 |
| 文件頁數(shù)： | 41/150頁 |
| 文件大?。?/td> | 647K |
| 代理商： | ISP1362 |
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Philips Semiconductors
ISP1362
Single-chip USB OTG controller
Product data
Rev. 03
—
06 January 2004
41 of 150
9397 750 12337
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
12.3 USB ports
The ISP1362 has two USB ports: port 1 and port 2. Port 1 can be con
fi
gured as a
downstream port (host), an upstream port (device) or a dual-role port (OTG). Port 2 is
a
fi
xed downstream port.
The function of port 1 depends on two input pins of the ISP1362, namely ID and
OTGMODE.
In the OTG mode, port 2 operates as an internal host. It is not advisable to expose
the host port 2 to external devices because it will not respond to the SRP and HNP
protocols. Besides, the current capability of V
BUS
may be different from the OTG
port
’
s. The USB compliance checklist states that one and only one USB mini-AB
receptacle is allowed on an OTG device.
12.4 Philips Transfer Descriptor (PTD)
The PTD provides a communication channel between the HCD and the ISP1362
USB HC. A PTD consists of a PTD header and a payload data. The size of the PTD
header is 8 bytes, and it contains information required for data transfer, such as data
packet size, transfer status and transfer token types. Payload data to be transferred
within a particular frame must have a PTD as the header (see
Figure 22
).
The ISP1362 has three types of PTDs: control and bulk transfer (aperiodic transfer)
PTD, interrupt transfer PTD and isochronous (ISO) transfer PTD.
In the control and bulk transfer PTD and the interrupt transfer PTD, the buffer area is
separated into equal sized blocks that are determined by HcATLBlockSize and
HcINTLBlockSize. For example, if the block size is de
fi
ned as 32 bytes, the
fi
rst PTD
structure in the memory buffer will have an offset of 0 bytes and the second PTD
structure will have an offset of 40 bytes [sum of the block size (32 bytes) and the PTD
header size (8 bytes)]. Because of the
fi
xed block size of the ISP1362 HC, however,
even a PTD with 4 bytes of payload will occupy all the 40 bytes in a block.
In the isochronous PTD, the HC uses a more
fl
exible method to calculate the PTD
offset because each PTD can have a different payload size. The actual amount of
space for the payload, however, must be a multiple of DWord. Therefore, a 10-byte
payload must have a reserved data size of 12 bytes. Take for example there are four
PTDs in the ISTL0 buffer area with payload sizes of 200 bytes, 10 bytes, 1023 bytes
and 30 bytes. Then, the offset of each of these PTDs will be as follows:
PTD1 (200 bytes)
—
offset = 0
PTD2 (10 bytes)
—
offset = (200 + 8) = 208
PTD3 (1023 bytes)
—
offset = (200 + 8) + (12 + 8) = 228
PTD4 (30 bytes)
—
offset = (200 + 8) + (12 + 8) + (1024 + 8) = 1260.
Table 8:
OTGMODE
L
H
H
Port 1 function
ID
X
L
H
Function of port 1
OTG
host
peripheral
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISP1362BD | Single-chip Universal Serial Bus On-The-Go controller |
| ISP1362EE | Single-chip Universal Serial Bus On-The-Go controller |
| ISP1501 | Hi-Speed Universal Serial Bus peripheral transceiver |
| ISP1520 | Hi-Speed Universal Serial Bus hub controller |
| ISP1520BD | Hi-Speed Universal Serial Bus hub controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISP1362BD | 功能描述:USB 接口集成電路 USB OTG CONTROLLER RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| ISP1362BD,118 | 功能描述:USB 接口集成電路 USB OTG CONTROLLER RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| ISP1362BD,151 | 功能描述:USB 接口集成電路 USB OTG CONTROLLER RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| ISP1362BD,157 | 功能描述:USB 接口集成電路 USB OTG CONTROLLER RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| ISP1362BD157 | 制造商:NXP Semiconductors 功能描述:IC CONTROLLER USB-OTG 64LQFP 制造商:ST-Ericsson 功能描述:IC CONTROLLER USB OTG 64-LQFP |
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