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參數資料
| 型號： | ISP1501 |
| 英文描述： | Hi-Speed Universal Serial Bus peripheral transceiver |
| 中文描述： | 高速通用串行總線外設收發器 |
| 文件頁數： | 22/40頁 |
| 文件大?。?/td> | 770K |
| 代理商： | ISP1501 |
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Philips Semiconductors
ISP1501
Hi-Speed USB peripheral transceiver
Product data
Rev. 02 — 21 November 2002
22 of 40
9397 750 10025
Koninklijke Philips Electronics N.V. 2002. All rights reserved.
12. Termination calibration
The on-chip termination is calibrated after power-up and mode change to provide
45
±
10% termination resistance. The ISP1501 must not transmit or receive data
during calibration.
12.1 Power-up behavior
This internal termination calibration occurs 21600 oscillator cycles after power-up.
Similar to the clock blocking mechanism, the exact timing depends on the external
crystal startup time. Therefore, the minimum timing from power-up to power-up
termination calibration is 21600 x 83 ns = 1.8 ms.
12.2 Suspend behavior
Pin SUSPEND does not cause any termination calibration.
12.3 Reset behavior
Pin RESET does not cause any termination calibration.
12.4 Mode change behavior
A termination calibration occurs 4
μ
s after a mode change and lasts for 2
μ
s.
RX_INACTIVE is asserted to facilitate calibration during this 2
μ
s period.
相關PDF資料 |
PDF描述 |
|---|---|
| ISP1520 | Hi-Speed Universal Serial Bus hub controller |
| ISP1520BD | Hi-Speed Universal Serial Bus hub controller |
| ISP1521 | Hi-Speed Universal Serial Bus hub controller |
| ISP1521BE | Hi-Speed Universal Serial Bus hub controller |
| ISP1561 | ISP1561BM |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ISP1501BE | 制造商:PHILLIPS 功能描述: |
| ISP1504 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Hi-Speed USB OTG(On-The-Go) Transceiver |
| ISP1504A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:ULPI Hi-Speed Universal Serial Bus On-The-Go transceiver |
| ISP1504A1_07 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:ULPI Hi-Speed Universal Serial Bus On-The-Go transceiver |
| ISP1504A1ET | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:ULPI Hi-Speed Universal Serial Bus On-The-Go transceiver |
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