參數(shù)資料
型號: AT43USB320A-AC
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: Full-speed USB Microcontroller with an Embedded Hub
中文描述: 8-BIT, 12 MHz, RISC MICROCONTROLLER, PQFP100
封裝: 14 X 14 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, MS-026AED, LQFP-100
文件頁數(shù): 80/115頁
文件大小: 722K
代理商: AT43USB320A-AC
80
AT43USB320A
1443E–USB–4/04
Hub Endpoint 0 Data Register – HDR0
Function Endpoint 0..2 Data Register – FDR0..2
This register is used to read data from or to write data to the Hub Endpoint 0 FIFO.
Bit 7..0 – FDAT7..0: FIFO Data
Hub endpoint 1 has a single byte data register instead of a FIFO. This data register contains
the hub and port status change bitmap. This data register is automatically updated by the USB
hardware and is not accessible by the firmware. The bits in this register when read by the host
will be:
Bit 7, 6 – Reserved
These bits are reserved in the AT43USB320A and will read as zero.
Bit 5 – P5 SC: Port 5 Status Change
Bit 4 – P4 SC: Port 4Status Change
Bit 3 – P3 SC: Port 3 Status Change
Bit 2 – P2 SC: Port 2 Status Change
Bit 1 – P1 SC: Port 1 Status Change
Bit 0 – H SC: Hub Status Change
Bit
7
6
5
4
3
2
1
0
$1FD7
DATA7
DATA6
DATA5
DATA4
DATA3
DATA2
DATA1
DATA0
HDR0
$1FD5
DATA7
DATA6
DATA5
DATA4
DATA3
DATA2
DATA1
DATA0
FDR0
$1FD4
DATA7
DATA6
DATA5
DATA4
DATA3
DATA2
DATA1
DATA0
FDR1
$1FD3
DATA7
DATA6
DATA5
DATA4
DATA3
DATA2
DATA1
DATA0
FDR2
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
$
P5 SC
P4 SC
P3 SC
P2 SC
P1 SC
H SC
HDR1
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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