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68HC705JB4 bảng dữ liệu(PDF) 97 Page - Freescale Semiconductor, Inc

tên linh kiện 68HC705JB4
Giải thích chi tiết về linh kiện  68HC05JB4
PDF  134 Pages
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nhà sản xuất  FREESCALE [Freescale Semiconductor, Inc]
Trang chủ  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

68HC705JB4 bảng dữ liệu(HTML) 97 Page - Freescale Semiconductor, Inc

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February 24, 1999
GENERAL RELEASE SPECIFICATION
MC68HC05JB4
UNIVERSAL SERIAL BUS MODULE
MOTOROLA
REV 2
10-31
Figure 10-32. IN Token Data Flow for Transmit Endpoint 1/2
Transmit Endpoint Enabled?
(USBEN = 1)
Transmit Endpoint ready to Transfer?
(TX1E = 1) && (TXD1F = 0) &
No Response
from USB function
Send NAK
Handshake
Set TXD1F to 1
Transmit Endpoint
Interrupt Enabled?
(TXD1IE = 1)
No Interrupt
Valid transaction
Interrupt generated
Transmit Endpoint not Stalled by firmware?
(STALL1 & ENDP1) + (STALL2 & ENDP2)
Send STALL
Handshake
Send DATA
Data PID set by T1SEQ
Valid IN token
received for Endpoints 1 or 2
N
Y
N
N
Y
Y
Y
ACK received and no
Time-out condition occurs?
No Response
from USB function
N
Y
((ENDP2 & ENDADD) + (ENDP1 & ENDADD))
ENDP1 is Endpoint 1 directed traffic
ENDP2 is Endpoint 2 directed traffic
Note:
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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