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參數(shù)資料
| 型號(hào)： | ISP1130 |
| 廠(chǎng)商： | NXP Semiconductors N.V. |
| 英文描述： | Universal Serial Bus compound hub with integrated keyboard controller |
| 中文描述： | 通用串行總線(xiàn)控制器與集成鍵盤(pán)復(fù)合樞紐 |
| 文件頁(yè)數(shù)： | 47/68頁(yè) |
| 文件大?。?/td> | 1786K |
| 代理商： | ISP1130 |
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Philips Semiconductors
ISP1130
USB compound hub with keyboard controller
Objective specification
Rev. 01 — 23 March 2000
47 of 68
9397 750 06895
Philips Electronics N.V. 2000. All rights reserved.
11.1 Protocol
The I
2
C-bus protocol defines the following conditions:
Bus free
: both SDA and SCL are HIGH
START
: a HIGH-to-LOW transition on SDA, while SCL is HIGH
STOP
: a LOW-to-HIGH transition on SDA, while SCL is HIGH
Data valid
: after a START condition, data on SDA are stable during the HIGH
period of SCL; data on SDA may only change while SCL is LOW.
Each device on the I
2
C-bus has a unique slave address, which the master uses to
select a device for access.
The master starts a data transfer using a START condition and ends it by generating
a STOP condition. Transfers can only be initiated when the bus is free. The receiver
must acknowledge each byte by means of a LOW level on SDA during the ninth clock
pulse on SCL.
For detailed information please consult The I
2
C-bus and how to use it, order number
9398 393 40011.
11.2 Hardware connections
Via the I
2
C-bus interface the ISP1130 can be connected to an external EEPROM
(PCF8582 or equivalent). The hardware connections are shown in
Figure 8
.
The SCL and SDA pins are multiplexed with pins MX3 and MX4 respectively. Pin
MEMSEL/UPGL can be used as a chip select output to select external devices, such
as smart card readers, UARTs, etc.
The slave address which ISP1130 uses to access the EEPROM is 1010000B. Page
mode addressing is not supported, so pins A0, A1 and A2 of the EEPROM must be
connected to GND (logic 0).
Fig 8.
EEPROM connection diagram.
idth
MGS808
MX4/SDA
MX3/SCL
A1
A2
A0
SDA
SCL
VDD
RP
RP
VDD
ISP1130
USB HUB
PCF8582
EEPROM
or
equivalent
I
2
C-bus
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISP1130DL | Universal Serial Bus compound hub with integrated keyboard controller |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISP1130DL | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Universal Serial Bus compound hub with integrated keyboard controller |
| ISP1130N | 制造商:PHILIPS 制造商全稱(chēng):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(chēng):NXP Semiconductors 功能描述:Embedded Universal Serial Bus Host Controller |
| ISP1160BD | 制造商:PHILIPS 制造商全稱(chēng):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(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 |
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