參數(shù)資料
型號(hào): AT43USB326-AC
廠商: ATMEL CORP
元件分類(lèi): 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(yè)數(shù): 31/102頁(yè)
文件大?。?/td> 511K
代理商: AT43USB326-AC
31
AT43USB326
3313D–USB–04/06
USB Interrupt Acknowledge Register – UIAR
Bit 7 – SOF INTACK: Start of Frame Interrupt Acknowledge
The microcontroller firmware writes a 1 to this bit to clear the SOF INT bit.
Bit 6 – EOF2 INTACK: EOF2 Interrupt Acknowledge
The microcontroller firmware writes a 1 to this bit to clear the EOF2 INT bit.
Bit 5, 4 – Res: Reserved Bits
These bits are reserved and are always read as zero.
Bit 3 – HEP0 INTACK: Hub Endpoint 0 Interrupt Acknowledge
The microcontroller firmware writes a 1 to this bit to clear the HEP0 INT bit.
Bit 2 – FEP2 INTACK: Function Endpoint 2 Interrupt Acknowledge
The microcontroller firmware writes a 1 to this bit to clear the FEP2 bit.
Bit 1 – FEP1 INTACK: Function Endpoint 1 Interrupt Acknowledge
The microcontroller firmware writes a 1 to this bit to clear the FEP1 bit.
Bit 0 – FEP0 INTACK: Function Endpoint 0 Interrupt Acknowledge
The microcontroller firmware writes a 1 to this bit to clear the FEP0 INT bit.
Bit
7
6
5
4
3
2
1
0
$1FF5
SOF INTACK
EOF2 INTACK
HEP0 INTACK
FEP2 IMSK
FEP1 INTACK
FEP0 INTACK
UIAR
Read/Write
W
W
R
R
W
W
W
W
Initial Value
0
0
0
0
0
0
0
0
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