參數(shù)資料
型號(hào)： AT43USB326-AC
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, MROM, 12 MHz, RISC MICROCONTROLLER, PQFP48
封裝： 7 X 7 MM, 1.40 MM THICKNESS, 0.50 MM PITCH, PLASTIC, MS-026BBC, LQFP-48
文件頁數(shù)： 53/102頁
文件大?。?/td> 511K
代理商： AT43USB326-AC
53
AT43USB326
3313D–USB–04/06
USB Registers
The following sections describe the registers of the AT43USB326’s USB hub and function
units.
Reading a bit for which the microcontroller does not have read access will yield a zero value
result. Writing to a bit for which the microcontroller does not have write access has no effect.
Hub Address Register
– HADDR
The USB hub contains an address register that contains the hub address assigned by the
host. This Hub Address Register must be programmed by the microcontroller once it has
received a SET_ADDRESS request from the host. The USB hardware uses the new address
only after the status phase of the transaction is completed when the microcontroller has
enabled the new address by setting bit 0 of the Global State Register. After power-up or reset,
this register will contain the value of 0x00.
Hub Address Register – HADDR
Bit 7 – SAEN: Single Address Enable
The Single Address Enable bit allows the microcontroller to configure the AT43USB326 into a
single address or a composite device. Once this capability is enabled, the hub endpoint 0
(HEP0) is converted from a control endpoint to a programmable function endpoint FEP3; all
the endpoints would then operate on the single address.
Bit 6..0 – HADD6...0: Hub Address[6:0]
Bit
7
6
5
4
3
2
1
0
$1FEF
SAEN
HADD6
HADD5
HADD4
HADD3
HADD2
HADD1
HADD0
HADDR
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial Value
0
0
0
0
0
0
0
0
相關(guān)PDF資料
PDF描述
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
AT43USB355E-AU 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-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
AT43USB351M_04 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Full-speed/ Low-speed USB Microcontroller with ADC and PWM
AT43USB351M-AC 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Full-speed/ Low-speed USB Microcontroller with ADC and PWM
AT43USB353M 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset
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