mc68hc05jb4p Freescale Semiconductor, Inc, mc68hc05jb4p Datasheet - Page 97

• Manufacturer Part Number: mc68hc05jb4p
• Description: Mc68hc705jb4 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

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