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參數(shù)資料
| 型號： | ISP1181DGG |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 總線控制器 |
| 英文描述： | INDUCTOR 4.7NH +-.3NH 0402 SMD |
| 中文描述： | UNIVERSAL SERIAL BUS CONTROLLER, PDSO48 |
| 封裝： | 6.10 MM, PLASTIC, TSSOP-48 |
| 文件頁數(shù)： | 12/69頁 |
| 文件大小： | 1655K |
| 代理商： | ISP1181DGG |
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Philips Semiconductors
ISP1181
Full-speed USB interface
Objective specification
Rev. 01 — 13 March 2000
12 of 69
9397 750 06896
Philips Electronics N.V. 2000. All rights reserved.
9.3 Endpoint initialization
In response to the standard USB request Set Interface, the firmware must program all
16 ECRs of the ISP1181 in sequence (see
Table 4
), whether the endpoints are
enabled or not. The hardware will then automatically allocate FIFO storage space.
If all endpoints have been configured successfully, the firmware must return an empty
packet to the control IN endpoint to acknowledge success to the host. If there are
errors in the endpoint configuration, the firmware must stall the control IN endpoint.
When reset by hardware or via the USB bus, the ISP1181 disables all endpoints and
clears all ECRs, except for the control endpoint which is fixed and always enabled.
Endpoint initialization can be done at any time; however, it is valid only after
enumeration.
9.4 Endpoint I/O mode access
When an endpoint event occurs (a packet is transmitted or received), the associated
endpoint interrupt bits (EPn) of the Interrupt Register (IR) will be set by the SIE. The
firmware then responds to the interrupt and selects the endpoint for processing.
The endpoint interrupt bit will be cleared by reading the Endpoint Status Register
(ESR). The ESR also contains information on the status of the endpoint buffer.
For an OUT (= receive) endpoint, the packet length and packet data can be read from
ISP1181 using the Read Buffer command. When the whole packet has been read,
the firmware sends a Clear Buffer command to enable the reception of new packets.
For an IN (= transmit) endpoint, the packet length and data to be sent can be written
to ISP1181 using the Write Buffer command. When the whole packet has been
written to the buffer, the firmware sends a Validate Buffer command to enable data
transmission to the host.
9.5 Special actions on control endpoints
Control endpoints require special firmware actions. The arrival of a SETUP packet
flushes the IN buffer and disables the Validate Buffer and Clear Buffer commands for
the control IN and OUT endpoints. The microcontroller needs to re-enable these
commands by sending an Acknowledge Setup command to
both
control endpoints.
Table 6:
Physical size
(bytes)
64
64
2046
16
16
128
128
Memory configuration example
Logical size
(bytes)
64
64
1023
16
16
64
64
Endpoint description
control IN (64 byte fixed)
control OUT (64 byte fixed)
double-buffered 1023-byte isochronous endpoint
16-byte interrupt OUT
16-byte interrupt IN
double-buffered 64-byte bulk OUT
double-buffered 64-byte bulk IN
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISP1183 | Low-power Universal Serial Bus interface device with DMA |
| ISP1183BS | Low-power Universal Serial Bus interface device with DMA |
| ISP1301 | Universal Serial Bus On-The-Go transceiver |
| ISP1301BS | Universal Serial Bus On-The-Go transceiver |
| ISP1362 | Single-chip Universal Serial Bus On-The-Go controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISP1183 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-power Universal Serial Bus interface device with DMA |
| ISP1183BS | 功能描述:IC USB HOST CTRL LOW-SPD 32HVQFN RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 標準包裝:3,000 系列:- 應用:PDA，便攜式音頻/視頻，智能電話 接口:I²C，2 線串口 電源電壓:1.65 V ~ 3.6 V 封裝/外殼:24-WQFN 裸露焊盤 供應商設備封裝:24-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:1015 (CN2011-ZH PDF) 其它名稱:296-25223-2 |
| ISP1183BS,118 | 功能描述:USB 接口集成電路 FULL-SPD USB2 DEVICE 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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| ISP1183BS,151 | 功能描述:USB 接口集成電路 FULL-SPD USB2 DEVICE 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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| ISP1183BS,157 | 功能描述:USB 接口集成電路 DO NOT USE ORDER -S OR -T PART 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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
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