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| 型號(hào)： | ISP1761 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Hi-Speed Universal Serial Bus On-The-Go controller |
| 中文描述： | 高速通用串行總線和On - The - Go控制器 |
| 文件頁(yè)數(shù)： | 24/158頁(yè) |
| 文件大小： | 724K |
| 代理商： | ISP1761 |
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9397 750 13258
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 — 12 January 2005
24 of 158
Philips Semiconductors
ISP1761
Hi-Speed USB OTG controller
With the help of the IRQ Mask AND and IRQ Mask OR registers for each type of
transfer— ISO, INT and bulk—software can determine which PTDs get priority and an
interrupt will be generated when the AND or OR conditions are met. The PTDs that are
set will wait until the respective bits of the remaining PTDs are set and then all PTDs
generate an interrupt request to the CPU together.
The registers definition shows that the AND or OR conditions are applicable to the same
category of PTDs—ISO, INT and ATL.
When an IRQ is generated, the PTD Done Map registers and the respective V bits will
show which PTDs were completed.
The rules that apply to the IRQ Mask AND or IRQ Mask OR settings are:
The OR mask has a higher priority over the AND mask. An IRQ is generated if bit n of
done map is set and the corresponding bit n of the OR mask register is set.
If the OR mask for any done bit is not set, then the AND mask comes into picture. An
IRQ is generated if all the corresponding done bits of the AND Mask register are set.
For example: If bits 2, 4 and 10 are set in the AND Mask register, an IRQ is generated
only if bits 2, 4, 10 of the done map are set.
If using the IRQ interval setting for the bulk PTD, an interrupt will only occur at the
regular time interval as programmed in the ATL Done Timeout register. Even if an
interrupt event occurs before the timeout of the register, no IRQ will be generated until
the time is up.
For an example on using the IRQ Mask AND or IRQ Mask OR registers, without the ATL
Done Timeout register, see
Table 5
.
The AND function: activate the IRQ only if PTDs 1, 2 and 4 are done.
The OR function: if any of the PTDs 7, 8 or 9 are done, an IRQ for each of the PTD will be
raised.
7.5 Phase-Locked Loop (PLL) clock multiplier
The internal PLL requires a 12 MHz input, which can be a 12 MHz crystal or a 12 MHz
clock already existing in the system with a precision better than 50 ppm. This allows the
use of a low-cost 12 MHz crystal that also minimizes Electro-Magnetic Interference (EMI).
When an external crystal is used, make sure the CLKIN pin is connected to V
CC(I/O)
.
Table 5:
PTD
1
2
3
4
5
6
7
8
9
Using the IRQ Mask AND or IRQ Mask OR registers
AND register
OR register
1
0
1
0
0
0
1
0
0
0
0
0
0
1
0
1
0
1
Time
1 ms
-
-
3 ms
-
-
5 ms
6 ms
7 ms
PTD done
1
1
-
1
-
-
1
1
1
IRQ
-
-
-
active because of AND
-
-
active because of OR
active because of OR
active because of OR
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISP1761BE | Hi-Speed Universal Serial Bus On-The-Go controller |
| ISP1761ET | Hi-Speed Universal Serial Bus On-The-Go controller |
| ISP2100A | Telecommunication IC |
| ISP2100BN4 | Microprocessor |
| ISP2300 | Controller Miscellaneous - Datasheet Reference |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISP1761BE | 功能描述:USB 接口集成電路 USB HS OTG CTRLR RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類(lèi)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 |
| ISP1761BE,518 | 功能描述:USB 接口集成電路 USB HS OTG CONTROLLER RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類(lèi)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 |
| ISP1761BE,551 | 功能描述:USB 接口集成電路 DO NOT USE ORDER -T OR NO "-" RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類(lèi)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 |
| ISP1761BE,557 | 功能描述:USB 接口集成電路 USB HS OTG CTRLR RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類(lèi)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 |
| ISP1761BE518 | 制造商:ST-Ericsson 功能描述:IC CONTROLLER USB OTG 128LQFP |
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