參數(shù)資料
型號： AT43USB326-AU
廠商： Atmel Corp.
英文描述： Multimedia USB Keyboard Controller with Embedded Hub
中文描述： 多媒體USB鍵盤控制器的嵌入式集線器
文件頁數(shù)： 57/102頁
文件大?。?/td> 511K
代理商： AT43USB326-AU
57
AT43USB326
3313D–USB–04/06
Hub Endpoint 0 Byte Count Register – HBYTE_CNT0
Function Endpoint 0..2 Byte Count Register – FBYTE_CNT0..2
The contents of these registers stores the number of bytes to be sent or that was received by
USB Hub and Function endpoints. This count includes the 16-bit CRC. To get the actual byte
count of the data, subtract the count in the register by 2. The maximum byte count supported
by the AT43USB326 is 8 bytes. Hub endpoint 1 has no byte count register.
Bit 7..6 – Reserved
These bits are reserved in the AT43USB326 and will read as zero.
Bit 5..0 – BYTCT5..0: Byte Count – Length of Endpoint Data Packet
Bit
7
6
5
4
3
2
1
0
Hub EP0 $1FCF
–
–
BYTCT5
BYTCT4
BYTCT3
BYTCT2
BYTCT1
BYTCT0
HBYTE_CNT0
Function EP0 $1FCD
–
–
BYTCT5
BYTCT4
BYTCT3
BYTCT2
BYTCT1
BYTCT0
FBYTE_CNT0
Function EP1 $1FCC
–
–
BYTCT5
BYTCT4
BYTCT3
BYTCT2
BYTCT1
BYTCT0
FBYTE_CNT1
Function EP2 $1FCB
–
–
BYTCT5
BYTCT4
BYTCT3
BYTCT2
BYTCT1
BYTCT0
FBYTE_CNT2
Read/Write
R
R
R
R/W
R/W
R/W
R/W
R/W
Initial Value
0
0
0
0
0
0
0
0
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