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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)： | 31/88頁 |
| 文件大?。?/td> | 2044K |
| 代理商： | ISP1160 |
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Philips Semiconductors
ISP1160
Embedded USB Host Controller
Product data
Rev. 04 — 04 July 2003
31 of 88
9397 750 11371
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
9.5.2
Control transaction limitations
The different phases of a Control transfer (SETUP, Data and Status) should never be
put in the same ATL.
9.6 Microprocessor loading
The maximum amount of data that can be transferred for an endpoint in one frame is
1023 bytes. The number of USB packets that are needed for this batch of data
depends on the maximum packet size that is specified.
The HCD has to schedule the transactions in a frame. On the other hand, the
microprocessor must have the ability to handle the interrupts coming from the HC
every 1 ms. It must also be able to do the scheduling for the next frame, reading the
frame information from and writing the next frame information to the buffer RAM in the
time between the end of the current frame and the start of the next frame.
9.7 Internal pull-down resistors for downstream ports
There are four internal 15 k
pull-down resistors built in the ISP1160 for the two
downstream ports: two resistors for each port. These resistors are software
selectable by programming bit 12 (2_DownstreamPort15Kresistorsel) of the
HcHardwareConfiguration register (20H to read, A0H to write). When bit 12 is logic 0,
external 15 k
pull-down resistors are used. When bit 12 is logic 1, internal 15 k
pull-down resistors are used. See
Figure 24
.
This feature is a cost-saving option. However, the power-on reset default value of
bit 12 is logic 0. If using the internal resistors, the HCD must check this bit status after
every reset, because a reset action (hardware or software) will clear this bit.
Fig 23. HC time domain behavior: example 3.
MGT956
(frame N)
(frame N
+
1)
(frame N
+
2)
(frame N
+
3)
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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