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參數資料
| 型號： | ISP1130DL |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Universal Serial Bus compound hub with integrated keyboard controller |
| 中文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, PDSO56 |
| 封裝： | PLASTIC, SSOP-56 |
| 文件頁數： | 46/68頁 |
| 文件大小： | 1786K |
| 代理商： | ISP1130DL |
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Philips Semiconductors
ISP1130
USB compound hub with keyboard controller
Objective specification
Rev. 01 — 23 March 2000
46 of 68
9397 750 06895
Philips Electronics N.V. 2000. All rights reserved.
SuspendClock = 0
: The operating clocks of the USB core and the microcontroller
remain on during ‘suspend’ state. The device’s power consumption is not reduced
and therefore this state does not guarantee ‘suspend’ current requirements.
SuspendClock = 1
: The internal clocks are automatically switched off after 2 ms.
This allows the microcontroller adequate time to process the ‘suspend’ interrupt
and enter Power-down mode. Power consumption is reduced to its minimum to
meet the ‘suspend’ current requirements of USB Specification Rev. 1.1
SuspendClock is changed from 0 to 1
: The clocks are switched off after 1 ms.
This option can be used if the microcontroller requires more time than 2 ms to
prepare for ‘suspend’ mode.
Remark:
After a resume operation, the microcontroller has to clear bit SuspendClock
to logic 0 to enable further suspend operations.
10.11.2
Resume
The ISP1130 can resume operation from ‘suspend’ state in three ways, depending on
whether the operating clocks are active or not:
Operating clock on
: Clearing the Suspend bit of the Device Status Register to
logic 0 will generate a remote wake-up signal.
Operating clock off
: The following events will generate a remote wake-up signal:
–
Key press (activity on the MYn lines)
–
USB bus activity.
Upon a remote wake-up signal, the USB core first enables the PLL and the clocks.
When the clocks have stabilized, an interrupt wakes up the microcontroller from
Power-down mode. The microcontroller resumes program execution from where it
left off. A ‘resume’ signal is then generated on the upstream port.
11. I
2
C-bus interface
A simple I
2
C-bus interface is provided in the ISP1130 to read configuration data from
an external EEPROM upon a (power-on) reset or a bus reset from the USB host. The
interface hardware supports both single master and slave operation at bus speeds up
to 400 kHz.
For this application the user must configure the I
2
C-bus interface as single master via
software. After reading the EEPROM configuration data, the I
2
C-bus driver software
module and the EEPROM must be disabled, since the SCL and SDA lines are
multiplexed with keyboard matrix scan lines (MX3 and MX4 respectively). Output
MEMSEL/UPGL is available for (de)selecting the EEPROM.
The I
2
C-bus interface is intended for bidirectional communication between ICs via two
serial bus wires, SDA (data) and SCL (clock). Both lines are driven by open-drain
circuits and must be connected to the positive supply voltage via pull-up resistors. In
the ISP1130 8.2 k
pull-up resistors are integrated on pins MX3/SCL and MX4/SDA.
相關PDF資料 |
PDF描述 |
|---|---|
| ISP1130N | Universal Serial Bus compound hub with integrated keyboard controller |
| ISP1160 | Embedded Universal Serial Bus Host Controller |
| 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 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ISP1130N | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus compound hub with integrated keyboard controller |
| ISP1160 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Embedded Universal Serial Bus Host Controller |
| 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 產品:USB 2.0 數據速率: 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 |
| ISP1160BD/01 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Embedded Universal Serial Bus Host Controller |
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