參數(shù)資料
型號(hào)： ISP1562
廠商： NXP Semiconductors N.V.
英文描述： Hi-Speed Universal Serial Bus PCI Host Controller
中文描述： 高速通用串行總線PCI主機(jī)控制器
文件頁數(shù)： 31/98頁
文件大小： 442K
代理商： ISP1562
9397 750 14223
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 — 14 July 2005
31 of 98
Philips Semiconductors
ISP1562
USB PCI Host Controller
9.
I
2
C-bus interface
A simple I
2
C-bus interface is provided in the ISP1562 to read customized vendor ID,
product ID and some other configuration bits from an external EEPROM.
The I
2
C-bus interface is for bidirectional communication between ICs using 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 through pull-up resistors when in use;
otherwise, they must be connected to ground.
9.1 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 is 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 using a LOW level on SDA during the ninth clock pulse on
SCL.
For detailed information, refer to The I
2
C-bus Specification, Version 2.1
9.2 Hardware connections
The ISP1562 can be connected to an external EEPROM through the I
2
C-bus interface.
The hardware connections are shown in
Figure 5
.
Fig 5.
EEPROM connection diagram.
004aaa509
SDA
SCL
A1
A2
A0
SDA
SCL
V
aux(3V3)
RP
RP
V
aux(3V3)
ISP1562
USB HOST
24C01
EEPROM
or
equivalent
I
2
C-bus
相關(guān)PDF資料
PDF描述
ISP1562BE Hi-Speed Universal Serial Bus PCI Host Controller
ISP1581 Universal Serial Bus 2.0 high-speed interface device
ISP1581BD Universal Serial Bus 2.0 high-speed interface device
ISP1582 Hi-Speed Universal Serial Bus peripheral controller
ISP1582BS Hi-Speed Universal Serial Bus peripheral controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISP1562BE 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Hi-Speed USB PCI host controller
ISP1562BE,518 功能描述:USB 接口集成電路 USB 2.0 PCI HOST 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(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
ISP1562BE,551 功能描述:USB 接口集成電路 USB 2.0 PCI HOST 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(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
ISP1562BE,557 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(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
ISP1562BEGA 功能描述:IC USB HOST CTRL HI-SPD 100LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 應(yīng)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(yīng)商設(shè)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
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