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參數(shù)資料
| 型號： | AT43USB321 |
| 廠商： | Atmel Corp. |
| 英文描述： | Full-speed USB Hub/Function Microcontroller |
| 中文描述： | 全速USB集線器/功能微控制器 |
| 文件頁數(shù)： | 2/4頁 |
| 文件大小： | 60K |
| 代理商： | AT43USB321 |
AT43USB321
2
Figure 1.
AT43USB321 Block Diagram
Development Support
The AT4USB321 uses the same program and development
tools as the Atmel AVR microcontrollers including: C com-
pilers, macro assemblers, program debuggers/simulators,
in-circuit emulators. The AT43USB321 is binary compatible
with the AT43320 and the two share the same develop-
ment kit, which includes firmware source code for the most
common USB applications.
Applications
The attached diagram shows an application of the
AT43USB321 in a monitor as a hub with two embedded
functions: a monitor display controller and IR receiver. The
number of external downstream ports of the hub is pro-
grammable from one to four. The hub can be self-powered
or bus-powered. In most cases, hubs in the monitors will be
self-powered because of the readily availability of the
power supply and its more versatility.
In this example, the AT43USB321 interfaces to the moni-
tor’s microcontroller, the host microcontroller, through an
I
2
C serial bus that supports two way communications such
as DDC2Bi. The firmware inside the AT43USB321 acts as
the translator between the host system and the host micro-
controller. This function can be performed without any
modification in the host microcontroller’s firmware resulting
in a very flexible way of adding USB capability in any moni-
tor. The IR receiver function is also implemented in
firmware also and can support any consumer type IR proto-
col that uses a frequency in the range of up to 52 kHz.
HUB AND
DEVICE
CONTROLLER
GENERAL PURPOSE IO
PORT4
PORT3
PORT2
PORT1
LFT
OSC1
OSC2
6/12M
DP0
DM0
PA[0:7]
PB[0:7]
PD0/RXD
PD1/TXD
PD2/INT0
PD3/INT1
CEXT
VCC
VSS
DP4
DM4
DP3
DM3
DP2
DM2
DP1
DM1
OVC
PWR
RST
OSC
&
PLL
SERIAL
INTERFACE
ENGINE
HUB
REPEATER
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT43USB324AC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:KEYBOARD CONTROLLER |
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| AT43USB325_05 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multimedia USB Keyboard Controller with Embedded Hub |
| AT43USB325E-AC | 功能描述:USB 接口集成電路 USB KEYBOARD CONTROL w/HUB - COM TEMP 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 |
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