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FlexRay Module Registers
26.3.2.1.2 ECC Diagnostic Status Register (ECCDSTAT)
ECC Diagnostic Status Register holds the ECC single bit error and the double bit error flags when in
diagnostic mode. A flag is cleared by writing a 1 to it.
Figure 26-110 and Table 26-96 illustrate this register.
NOTE: In normal operation mode, double bit errors are indicated in the Message Handler Status
(MHDS) register, except for FTU RAM. A double bit errors in FTU RAM is indicated by the
dedicated ECC error flag (PE) in the Transfer Error Interrupt Flag (TEIF) register.
Figure 26-110. ECC Diagnostic Status Register (ECCDSTAT) [offset_CC = 04h]
31 24
Reserved
R-0
23 22 21 20 19 18 17 16
DEFH DEFG DEFF DEFE DEFD DEFC DEFB DEFA
R/W1C-0 R/W1C-0 R/W1C-0 R/W1C-0 R/W1C-0 R/W1C-0 R/W1C-0 R/W1C-0
15 8
Reserved
R-0
7 6 5 4 3 2 1 0
SEFH SEFG SEFF SEFE SEFD SEFC SEFB SEFA
R/W1C-0 R/W1C-0 R/W1C-0 R/W1C-0 R/W1C-0 R/W1C-0 R/W1C-0 R/W1C-0
LEGEND: R/W = Read/Write; R = Read only; W1C = Write 1 to clear; -n = value after reset
Table 26-96. ECC Diagnostic Status Register (ECCDSTAT) Field Descriptions
Bit Field Value Description
31-24 Reserved 0 Read returns 0. Writes have no effect.
23 DEFH ECC Double Bit Error Flag for FTU RAM.
0 No ECC double bit error is detected.
1 ECC double bit error is detected and diagnostic mode is enabled.
22 DEFG ECC Double Bit Error Flag for FlexRay Message RAM.
0 No ECC double bit error is detected.
1 ECC double bit error is detected and diagnostic mode is enabled.
21 DEFF ECC Double Bit Error Flag for Transient Buffer B RAM.
0 No ECC double bit error is detected.
1 ECC double bit error is detected and diagnostic mode is enabled.
20 DEFE ECC Double Bit Error Flag for Transient Buffer A RAM.
0 No ECC double bit error is detected.
1 ECC double bit error is detected and diagnostic mode is enabled.
19 DEFD ECC Double Bit Error Flag for Output Buffer 2 RAM.
0 No ECC double bit error is detected.
1 ECC double bit error is detected and diagnostic mode is enabled.
18 DEFC ECC Double Bit Error Flag for Output Buffer 1 RAM.
0 No ECC double bit error is detected.
1 ECC double bit error is detected and diagnostic mode is enabled.
17 DEFB ECC Double Bit Error Flag for Input Buffer 2 RAM.
0 No ECC double bit error is detected.
1 ECC double bit error is detected and diagnostic mode is enabled.
1271
SPNU563–May 2014 FlexRay Module
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