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參數(shù)資料
| 型號： | AT43USB325E-AU |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Multimedia USB Keyboard Controller with Embedded Hub |
| 中文描述： | 8-BIT, 12 MHz, RISC MICROCONTROLLER, PQFP64 |
| 封裝： | 1.40 MM HEIGHT, GREEN, PLASTIC, MS-026ACB, LQFP-64 |
| 文件頁數(shù)： | 18/109頁 |
| 文件大?。?/td> | 643K |
| 代理商： | AT43USB325E-AU |
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18
3355C–USB–4/05
AT43USB325
All AT43USB325 I/O and peripherals, except for the USB hardware registers, are placed in the
I/O space. The I/O locations are accessed by the IN and OUT instructions transferring data
between the 32 general-purpose working registers and the I/O space. I/O registers within the
address range $00 – $1F are directly bit-accessible using the SBI and CBI instructions. In these
registers, the value of single bits can be checked by using the SBIS and SBIC instructions. Refer
to the instruction set documentations of the AVR for more details. When using the I/O specific
commands, IN and OUT, the I/O address $00 – $3F must be used. When addressing I/O regis-
ters as SRAM, $20 must be added to this address. All I/O register addresses throughout this
document are shown with the SRAM address in parentheses.
For compatibility with future devices, reserved bits should be written to zero if accessed.
Reserved I/O memory addresses should never be written.
3.7
USB Hub
A block diagram of the USB hardware of the AT43USB325 is shown in
Figure 3-3
. The USB hub
of the AT43USB325 has 5 downstream ports. The embedded function is permanently attached
to Port 1. Ports 2, 3, 4 and 5 are available as external ports. The actual number of ports used is
strictly defined by the firmware of the AT43USB325 and can vary from 0 to 4. Because the exact
configuration is defined by firmware, these ports may even function as permanently attached
ports as long as the Hub Descriptor identifies them as such.
3.7.1
USB Function
The embedded USB function has its own device address and has a default endpoint plus 3 other
programmable endpoints with their own 8-byte FIFOs. Endpoints 1 and 2 can be programmed
as interrupt IN or OUT or bulk IN or OUT endpoints.
$15 ($35)
PORTC
Data Register, Port C
$14 ($34)
DDRC
Data Direction Register, Port C
$13 ($33)
PINC
Input Pins, Port C
$12 ($32)
PORTD
Data Register, Port D
$11 ($31)
DDRD
Data Direction Register, Port D
$10 ($30)
PIND
Input Pins, Port D
$06 ($26)
PORTF
Data Register, Port F
$05 ($25)
DDRF
Data Direction Register, Port F
$04 ($24)
PINF
Input Pins, Port F
$03 ($23)
PORTE
Data Register, Port E
$02 ($22)
DDRE
Data Direction Register, Port E
$01 ($21)
PINE
Input Pins, Port E
Table 3-5.
I/O Memory Space (Continued)
I/O (SRAM)
Address
Name
Function
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT43USB326-AC | Multimedia USB Keyboard Controller with Embedded Hub |
| AT43USB326-AU | Multimedia USB Keyboard Controller with Embedded Hub |
| AT43USB351M-AC | Full-speed/Low-speed USB Microcontroller with ADC and PWM |
| AT43USB353M-AC | Low Cost Full-speed USB Microcontroller with Embedded Hub, ADC and PWM |
| AT43USB355E-AC | Full-speed USB Microcontroller with Embedded Hub, ADC and PWM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT43USB326 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset |
| AT43USB326_06 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multimedia USB Keyboard Controller with Embedded Hub |
| AT43USB326-AC | 功能描述:USB 接口集成電路 USB KEYBOARD F/LOGI- TECH - 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 |
| AT43USB326-AU | 功能描述:USB 接口集成電路 USB KEYBOARD FOR LOGITECH - IND 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 |
| AT43USB351M | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset |
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