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AT43320 PDF даташит

Спецификация AT43320 изготовлена ​​​​«ATMEL Corporation» и имеет функцию, называемую «Full-speed USB Hub/Function Microcontroller».

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Номер произв AT43320
Описание Full-speed USB Hub/Function Microcontroller
Производители ATMEL Corporation
логотип ATMEL Corporation логотип 

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AT43320 Даташит, Описание, Даташиты
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Features
AVR® Microcontroller-based USB Hub and Function Controller
One Upstream Port Plus Four External and One Attached Downstream Ports
USB Hub with Two Endpoints
Embedded USB Function with 3 Endpoints
32 Programmable I/O Port Pins
High-performance and Low-power AVR RISC Microcontroller
120 Powerful Instructions – Most with 83 ns Execution Cycle Times
128K Bytes Program Memory Address Range
512 Bytes Internal SRAM
32 x 8 General-purpose Working Registers
Programmable UART and SPI Serial Interface
One 8-bit Timer/Counter with Separate Prescaler
One 16-bit Timer/Counter with Separate Prescaler
External and Internal Interrupt Sources
Programmable Watchdog Timer
Low-power Idle and Power-down Modes
Programmable 6/12 MHz Oscillator with PLL
On-chip 3.3V Power Supply
100-pin LQFP Package
Full-speed USB
Hub/Function
Microcontroller
AT43320
Overview
The Atmel AT43320 is a microcontroller-based USB hub with an embedded function.
The USB hub has five downstream ports, one of which is permanently attached. Inter-
nally the AT43320 consists of a USB hub and function interface, a hub repeater, and a
high-performance, efficient 8-bit RISC microcontroller. The hub and peripheral device
controller function is implemented in the microcontroller’s firmware. To the USB host,
the embedded function appears as an attached port of the hub with its own device
address and endpoints. The AT43320 can also be configured as a USB function with-
out the hub.
The USB hardware block consists of a USB transceiver, SIE, hub repeater, endpoint
controllers, and an interface to the microcontroller. The USB hardware interfaces to
the USB host at the transaction level. The CPU of the microcontroller is based on the
Atmel AVR microcontroller and is capable of addressing up to 128K bytes of external
program memory. The AVR architecture was developed to be programmed in C effi-
ciently and with maximum performance.
Rev. 1443A–08/99
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AT43320 Даташит, Описание, Даташиты
Figure 1. AT43320 Block Diagram
MICROCONTROLLER
IO PORTS
UPSTREAM USB
PORT
SIE AND
ENDPOINT
CONTROL
HUB
REPEATER
DOWN
STREAM
USB PORTS
3 ENDPOINT
USER DEFINED
USB FUCTION
AVR
MICROCONTOLLER
EXTERNAL FLASH/EPROM
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AT43320 Даташит, Описание, Даташиты
AT43320
Development Support
The AT43320 uses the same program and development
tools as the Atmel AVR microcontrollers including: C com-
pilers, macro assemblers, program debuggers/simulators,
in-circuit emulators. A USB development is also available
including firmware source code for the most common USB
applications.
Figure 2. Hub/Monitor/IR Chip Application
HUB/MONITOR/IR
CHIP
I 2C/UART
MONITOR
µC
REMOTE
IR
UNIT
IR
XCVR
IR
XCVR
DOWNSTREAM
PORTS
UPSTREAM
PORT
TO USB DEVICES
TO USB HOST
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Номер в каталогеОписаниеПроизводители
AT43320Full-speed USB Hub/Function MicrocontrollerATMEL Corporation
ATMEL Corporation

Номер в каталоге Описание Производители
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Vishay
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STMicroelectronics
STMicroelectronics

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