mfr4200 Freescale Semiconductor, Inc, mfr4200 Datasheet - Page 162

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

MFR4200 FlexRay Communication Controller
3.5.3.2
The active transmit message buffer (see
fields. Any transmit message buffer is accessible through the active transmit message buffer after the buffer
has been locked successfully. The active transmit message buffer layout is shown in
Buffer control, configuration, filtering and status data is stored in the buffer control, configuration, status
and filtering registers set. The layout of the set is presented in
3.5.3.3
The active receive FIFO message buffer (see
configuration fields. Any receive FIFO buffer is accessible through the active receive FIFO buffer after the
locking procedure for this buffer has been finished.
For a detailed description of FIFO access, refer to
receive FIFO buffer layout is shown in
different from the receive/transmit message buffer locking operation (see
Locking/Unlocking and Locking
Buffer Control, Configuration and Status n Register, n = [0:58]
If a buffer is configured as a receive FIFO buffer, only its buffer control, configuration and status register
(BUFCSnR) is used; the CCFnR registers are not. Instead of the CCFnR registers, the FIFO acceptance
filter registers and FIFO rejection filter registers must be used.
The buffer control, configuration, status and filtering register set for the receive FIFO buffers is shown on
the
162
Figure
3-132. Buffer 0 is configured as a receive FIFO buffer.
Active Transmit Message Buffer
Active Receive FIFO Buffer
Figure 3-131
buffers.
Figure 3-131
for receive FIFO buffers.
is applicable for transmit and receive message buffers only, not
does not apply to message buffers configured as receive FIFO
Timing” and the LOCK bit description in
Table
Table
MFR4200 Data Sheet, Rev. 0
3-1) contains transmit message buffer data and configuration
Table
3-12. The locking procedure for receive FIFO buffers is
NOTE
NOTE
Section 3.6, “Receive FIFO
3-1) contains receive FIFO buffer data and
Figure
(BUFCSnR)”).
3-131.
Section 3.5.3.4, “Active Buffers
Section 3.2.3.7.2, “Message
Function”. The active
Freescale Semiconductor
Table
3-13.