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FlexRay Module Registers
1303
SPNU563A–March 2018
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FlexRay Module
26.3.1.20 Trigger Transfer to Communication Controller Set/Reset (TTCCS[1-4]/TTCCR[1-4])
The Trigger Transfer to Communication Controller registers select the current message buffer for a
Transfer Unit State Machine transfer transaction from system memory. Four 32-bit registers reflect all
possible 128 message buffers.
The bits are set by writing 1 to TTCCSx and reset by writing 1 to TTCCRx or after the transfer occurred.
Writing a 0 has no effect. Reading from both addresses will result in the same value.
Figure 26-66. Trigger Transfer to Communication Controller Set 1 (TTCCS1) [offset_TU = A0h]
31 16
TTCCS1[31-16]
R/WS-0
15 0
TTCCS1[15-0]
R/WS-0
LEGEND: R/W = Read/Write; R = Read only; S = Set; -n = value after reset
Table 26-46. Trigger Transfer to Communication Controller Set 1 (TTCCS1) Field Descriptions
Bit Field Value Description
31-0 TTCCS1[n] Trigger Transfer to Communication Controller Set 1.
The register bits 0 to 31 correspond to message buffers 0 to 31. Each bit of the register controls the
message buffer transfer to the communication controller in the following manner:
0 No transfer request.
1 Transfer based on address defined in TBA.
Figure 26-67. Trigger Transfer to Communication Controller Reset 1 (TTCCR1) [offset_TU = A4h]
31 16
TTCCR1
R/WC-0
15 0
TTCCR1
R/WC-0
LEGEND: R/W = Read/Write; R = Read only; C = Clear; -n = value after reset
Table 26-47. Trigger Transfer to Communication Controller Reset 1 (TTCCR1) Field Descriptions
Bit Field Description
31-0 TTCCR1 Trigger Transfer to Communication Controller Reset 1. The TTCCR1 register shows the identical values to
TTCCS1 if read.
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