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AT43USB355 датащи(PDF) 85 Page - ATMEL Corporation

номер детали AT43USB355
подробное описание детали  Full-speed USB Microcontroller with Embedded Hub, ADC and PWM
PDF  115 Pages
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производитель  ATMEL [ATMEL Corporation]
домашняя страница  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT43USB355 датащи(HTML) 85 Page - ATMEL Corporation

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85
AT43USB355
2603G–USB–04/06
Hub End-point 0 Byte Count Register – HBYTE_CNT0
Function End-point 0..3 Byte Count Register – FBYTE_CNT0..3
The contents of these registers stores the number of bytes to be sent or that was received by
USB Hub and Function end-points. 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 hub EP0 and function EP3 have
8 byte FIFOs while function EP1 and EP2 have 64 byte FIFOs. Hub end-point 1 has no byte
count register.
• Bit 7..6 – Reserved
These bits are reserved in the AT43USB355 and will read as zero.
• Bit 5..0 – BYTCT5..0: Byte Count – Length of End-point Data Packet
Bit
7
6
543
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
–
BYTCT6
BYTCT5
BYTCT4
BYTCT3
BYTCT2
BYTCT1
BYTCT0
FBYTE_CNT1
Function EP2 $1FCB
–
BYTCT6
BYTCT5
BYTCT4
BYTCT3
BYTCT2
BYTCT1
BYTCT0
FBYTE_CNT2
Function EP3 $1FCA
–
–
BYTCT5
BYTCT4
BYTCT3
BYTCT2
BYTCT1
BYTCT0
FBYTE_CNT3
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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