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AT89C5132-ROTUL bảng dữ liệu(PDF) 95 Page - ATMEL Corporation

tên linh kiện AT89C5132-ROTUL
Giải thích chi tiết về linh kiện  USB Microcontroller with 64K Bytes Flash Memory
PDF  181 Pages
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nhà sản xuất  ATMEL [ATMEL Corporation]
Trang chủ  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89C5132-ROTUL bảng dữ liệu(HTML) 95 Page - ATMEL Corporation

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95
4173D–USB–02/06
AT89C5132
the user may reset the data controller and its internal state machine by setting and clearing the
DCR bit in MMCON2 register.
This time-out may be disarmed after receiving 8 data (F1FI flag set) or after receiving end of
frame (EOFI flag set) in case of block length less than 8 data (1, 2 or 4).
16.6.4.3
Data Reading
Data is read from the FIFO by reading to MMDAT register. Each time one FIFO becomes full
(F1FI or F2FI set), user is requested to flush this FIFO by reading 8 data.
Figure 16-18. Data Stream Reception Flows
Data Stream
Reception
FIFO Full?
F1FI or F2FI = 1?
FIFO Reading
read 8 data from MMDAT
No More Data
To Receive?
a. Polling Mode
Data Stream
Initialization
Data Stream
Reception ISR
FIFO Reading
read 8 data from MMDAT
Send
STOP Command
No More Data
To Receive?
b. Interrupt Mode
FIFO Full?
F1FI or F2FI = 1?
Unmask FIFOs Full
F1FM = 0
F2FM = 0
Send
STOP Command
Mask FIFOs Full
F1FM = 1
F2FM = 1



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