mfr4200 Freescale Semiconductor, Inc, mfr4200 Datasheet - Page 180

• Manufacturer Part Number: mfr4200
• Description: Flexray Communication Controllers
• Manufacturer: Freescale Semiconductor, Inc

MFR4200 FlexRay Communication Controller
180
Figure 3-137. Operations with a Single Transmit Message Buffer during an Event Type of Transmission for
Time
(Host writes LOCK = 1)
but access not granted
but access not granted
(Host writes LOCK=1)
(Host writes LOCK=1)
(Host writes LOCK=1)
(Host writes LOCK=1)
(Host writes LOCK=1)
because CC locked
because CC locked
Host Operations
Unlock Request
Unlock Request
Lock Request
Lock Request
Lock Request
Lock Request
the buffer.
the buffer.
0
0
1
1
1
1
0
0
1
1
1
0
0
0
0
1
1
0
MFR4200 Data Sheet, Rev. 0
1
1
1
0
0
0
1
1
1
Transmit Message Buffer with
0
1
1
1
1
1
0
1
1
a Static Segment
Frame ID = A
DATA1
DATA1
DATA1
DATA1
DATA1
DATA1
DATA1
DATA2
DATA2
CC transmission
granted because
CC transmission
there is no other
Host locked the
matching buffer
Access granted
CC Operations
CC transmits a
buffer is locked
Note:
1
Transmission
Transmission
CC transmits
because the
by Host and
on request.
Access not
Null Frame
Read back value of the bit.
request.
DATA1
buffer
Done
Done
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