![Infineon Technologies TC1784 Скачать руководство пользователя страница 1580](http://html.mh-extra.com/html/infineon-technologies/tc1784/tc1784_user-manual_20554461580.webp)
TC1784
FlexRay™ Protocol Controller (E-Ray)
User´s Manual
20-204
V1.1, 2011-05
E-Ray, V3.13
The Communication Controller enters this state
•
When exiting from “DEFAULT_CONFIG” state
•
When exiting from “MONITOR_MODE” or “READY” state
When the state has been entered via “HALT” and “DEFAULT_CONFIG” state, the Host
can analyze status information and configuration. Before leaving “CONFIG” state the
Host has to assure that the configuration is fault-free.
To leave “CONFIG” state, the Host has to perform the unlock sequence as described on
. Directly after unlocking the “CONFIG” state the Host has to write
in the SUC Configuration Register 1 to enter the next state.
Internal counters and the Communication Controller status flags are reset when the
Communication Controller leaves “CONFIG”.
Note: The Message Buffer Status Registers (
,
) and status data stored in the Message RAM and are
not affected by the transition of the POC from “CONFIG” to “READY” state.
When the Communication Controller is in “CONFIG” state it is also possible to bring the
Communication Controller into a power saving mode by halting the module clocks (
f
SCLK
,
f
CLC_ERAY
). To do this the Host has to assure that all Message RAM transfers have
finished before turning off the clocks.
20.6.5.3 MONITOR_MODE
After unlocking “CONFIG” state and writing
= 0011
B
the Communication
Controller enters “MONITOR_MODE”. In this mode the Communication Controller is
able to receive FlexRay™ Frames and to detect wakeup pattern. The temporal integrity
of received Frames is not checked, and therefore cycle counter filtering is not supported.
It is not possible to distinguish between static and dynamic frames, because limited
functions in Monitor Mode (FRF.RSS will be ignored, filtering not functional).This mode
can be used for debugging purposes in case e.g. that startup of a FlexRay™ network
fails. After writing
= 0001
B
the Communication Controller transits back to
“CONFIG” state.
In MONITOR_MODE the pick first valid mechanism is disabled. This means that a
receive Message Buffer may only be configured to receive on one channel. Received
Frames are stored into Message Buffers according to Frame ID and receive channel.
NULL Frames are handled like Data Frames. After Frame reception only status bits
.
,
.
.
,
,
have valid value.
In “MONITOR_MODE” the Communication Controller is not able to distinguish between
CAS and MTS symbols. In case one of these symbols is received on one or both of the
two channels, the flags
resp.
.
are set.
“MONITOR_MODE”.
Содержание TC1784
Страница 1: ...User s Manual V1 1 2011 05 Microcontrollers TC1784 32 Bit Single Chip Microcontroller ...
Страница 3: ...User s Manual V1 1 2011 05 Microcontrollers TC1784 32 Bit Single Chip Microcontroller ...
Страница 950: ...TC1784 Direct Memory Access Controller DMA User s Manual 11 132 V1 1 2011 05 DMA V3 03 ...
Страница 1949: ...TC1784 General Purpose Timer Array GPTA v5 User s Manual 21 297 V1 1 2011 05 GPTA v5 V1 14 ...
Страница 2350: ...w w w i n f i n e o n c o m Published by Infineon Technologies AG Doc_Number ...