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參數(shù)資料
型號: ISP1160
廠商: NXP Semiconductors N.V.
英文描述: Embedded Universal Serial Bus Host Controller
中文描述: 嵌入式通用串行總線主控制器
文件頁數(shù): 19/88頁
文件大小: 2044K
代理商: ISP1160
Philips Semiconductors
ISP1160
Embedded USB Host Controller
Product data
Rev. 04 — 04 July 2003
19 of 88
9397 750 11371
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
5.
Prepare PTD data in
μ
P system RAM
The communication between the HCD and the ISP1160 HC is in the form of
Philips Transfer Descriptor (PTD) data. The PTD data provides USB traffic
information about the commands, status and USB data packets.
The physical storage media of PTD data for the HCD is the microprocessor’s
system RAM. For the ISP1160’s HC, the storage media is the internal FIFO buffer
RAM.
The HCD prepares PTD data in the microprocessor’s system RAM for transfer to
the ISP1160’s HC internal FIFO buffer RAM.
6.
Transfer PTD data into HC’s FIFO buffer RAM
When PTD data is ready in the microprocessor’s system RAM, the HCD must
transfer the PTD data from the microprocessor’s system RAM into the ISP1160’s
internal FIFO buffer RAM.
7.
HC interprets PTD data
The HC determines what USB transactions are required based on the PTD data
that has been transferred into the internal FIFO buffer RAM.
8.
HC performs USB transactions via USB bus interface
The HC performs the USB transactions with the specified USB device endpoint
through the USB bus interface.
9.
HC informs HCD of the USB traffic results
The USB transaction status and the feedback from the specified USB device
endpoint will be put back into the ISP1160’s HC internal FIFO buffer RAM in PTD
data format. The HCD can read back the PTD data from the internal FIFO buffer
RAM.
9.3 PTD data structure
The Philips Transfer Descriptor (PTD) data structure provides communication
between the HCD and the ISP1160’s USB HC. The PTD data contains information
required by the USB traffic. PTD data consists of a PTD followed by its payload data,
as shown in
Figure 16
.
Fig 16. PTD data in FIFO buffer RAM.
MGT949
PTD
FIFO buffer RAM
payload data
PTD data #1
PTD
payload data
payload data
PTD
PTD data #2
PTD data #N
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PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISP1160BD 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Embedded Universal Serial Bus Host Controller
ISP1160BD,157 功能描述:USB 接口集成電路 USB 1.1 HOST 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
ISP1160BD/01 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Embedded Universal Serial Bus Host Controller
ISP1160BD/01,118 功能描述:USB 接口集成電路 USB HOST CTRL 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
ISP1160BD/01,151 功能描述:USB 接口集成電路 USB FULL SPEED HOST 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
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