mfr4200 Freescale Semiconductor, Inc, mfr4200 Datasheet - Page 172

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

MFR4200 FlexRay Communication Controller
3.5.5
Reconfiguration procedure during the normal state of operation:
The host must follow the configuration principles and procedure as well as reconfiguration principles,
while reconfigures the message buffers during normal operation.
Reconfiguration principles:
Figure 3-135
reconfigured during the normal state of the CC:
172
1. Only single transmit message buffers for dynamic segment (STBDS) are reconfigurable in normal
2. States and parameters that are reconfigurable:
3. Buffers, states and parameters that are not reconfigurable:
operation.
— Parameters of STBDS accessible for host write operations (see
— FIFO size
— Double transmit message buffers
— Receive message buffers
— Buffers from transmit message buffers to receive message buffers, and vice versa
— All the filtering parameters (channel filters configuration, frame ID filters configuration
— Buffers cannot be reassigned from static to dynamic segment, or vice versa.
— FIFO
— Buffers cannot be reconfigured from single to double transmit message buffers, or vice versa.
— Buffers assigned to the static segment are not reconfigurable
Buffer Reconfiguration in the Normal State of Operation
FIFO, and transmit message buffers are accessible to the host MCU only through the active
receive, active transmit, and active receive FIFO
Control, Configuration and Status
(except single transmit message buffers for dynamic segment), message ID filters configuration
and masks, message buffer filtering configuration)
shows how CC buffers can be configured and reconfigured during the configuration state, and
MFR4200 Data Sheet, Rev. 0
Register”).
buffers.” and
Section 3.4.1, “Message Buffer
Section , “Receive, receive
Freescale Semiconductor