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參數資料
| 型號： | AT43USB353M-AC |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Low Cost Full-speed USB Microcontroller with Embedded Hub, ADC and PWM |
| 中文描述： | 8-BIT, MROM, 24 MHz, RISC MICROCONTROLLER, PQFP48 |
| 封裝： | 7 X 7 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, PLASTIC, MS-026BBC, LQFP-48 |
| 文件頁數： | 64/95頁 |
| 文件大?。?/td> | 568K |
| 代理商： | AT43USB353M-AC |
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64
AT43USB353M
3307B–USB–4/04
USB Registers
The following sections describe the registers of the AT43USB353M’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 AT43USB353M into
a single address or a composite device. Once this capability is enabled, the Hub End-point 0
(HEP0) is converted from a control end-point to a programmable function end-point FEP3; all
the end-points would then operate on the single address.
Bit 6..0 – HADD6...0: Hub Address[6:0]
Function Address
Register – FADDR
The USB function contains an address register that contains the function address assigned by
the host. This Function Address Register must be programmed by the microcontroller once it
has received a SET_ADDRESS request from the host and completed the status phase of the
transaction. After power up or reset, this register will contain the value of 0x00.
Function Address Register – FADDR
Bit 7 – FEN: Function Enable
The Function Enable bit (FEN) allows the firmware to enable or disable the function end-
points. The firmware will set this bit after receipt of a reset through the hub, SetPortFea-
ture[PORT_RESET]. Once this bit is set, the USB hardware passes to and from the host.
When the Single Address bit is set, the condition of FEN is ignored.
Bit 6..0 – FADD6...0: Function 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
Bit
7
6
5
4
3
2
1
0
$1FEE
FEN
FADD6
FADD5
FADD4
FADD3
FADD2
FADD1
FADD0
FADDR
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
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相關代理商/技術參數 |
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| AT43USB355 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset |
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| AT43USB355E-AC | 功能描述:8位微控制器 -MCU USB GAME CONTROL w/EMBED HUB-COM TEMP RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT |
| AT43USB355E-AU | 功能描述:8位微控制器 -MCU USB GAME CONTROL w/ EMBED HUB RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT |
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