參數(shù)資料
型號(hào)： 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(yè)數(shù)： 23/88頁(yè)
文件大小： 2044K
代理商： ISP1160
Philips Semiconductors
ISP1160
Embedded USB Host Controller
Product data
Rev. 04 — 04 July 2003
23 of 88
9397 750 11371
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
ATL buffer length
=
400H, ITL buffer length
=
200H.
This is insufficient use of the internal FIFO buffer RAM.
ATL buffer length
=
1000H, ITL buffer length
=
0H.
This will use the internal FIFO buffer RAM for only ATL transfers.
The actual requirement for the buffer RAM needs to reach not the maximum size. You
can make your selection based on your application.
The following are some calculations of the ISO_A or ISO_B space for a frame of data:
Maximum number of useful data sent during one USB frame is 1280 bytes (20 ISO
packets of 64 bytes). The total RAM size needed is:
20
×
8
+
1280
=
1440 bytes.
Maximum number of packets for different endpoints sent during one USB frame is
150 (150 ISO packets of 1 byte). The total RAM size needed is:
150
×
8
+
150
×
1
=
1350 bytes.
The Ping buffer RAM (ITL0) and the Pong buffer RAM (ITL1) have a maximum size
of 2 kbytes each. All data needed for one frame can be stored in the Ping or the
Pong buffer RAM.
When the embedded system wants to initiate a transfer to the USB bus, the data
needed for one frame is transferred to the ATL buffer or the ITL buffer. The
microprocessor detects the buffer status through interrupt routines. When the
HcBufferStatus register (2CH to read only) indicates that the buffer is empty, then the
microprocessor writes data into the buffer. When the HcBufferStatus register
indicates that the buffer is full, the data is ready on the buffer, and the microprocessor
needs to read data from the buffer.
For every 1 ms, there might be many events to generate interrupt requests to the
microprocessor for data transfer or status retrieval. However, each of the interrupt
types defined in this specification can be enabled or disabled by setting
Hc
μ
PInterruptEnable register bits accordingly.
Fig 17. HC internal FIFO buffer RAM partitions.
MGT950
not used
ATL buffer
ITL0
top
bottom
ITL1
ISO_A
FIFO buffer RAM
ISO_B
control/bulk/interrupt
data
programmable
sizes
4 kbytes
ITL buffer
ATL
相關(guān)PDF資料
PDF描述
ISP1160BD Embedded Universal Serial Bus Host Controller
ISP1160BM Embedded Universal Serial Bus Host Controller
ISP1161A Full-speed Universal Serial Bus single-chip host and device controller
ISP1161ABD Full-speed Universal Serial Bus single-chip host and device controller
ISP1161ABM Full-speed Universal Serial Bus single-chip host and device controller
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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