7.5.7.16 SPDIF Transmitter Fault Injection Register

This register can only be written if the FIRDIS bit is cleared.
Name: SPDIFTX_FIR
Offset: 0xB8
Reset: 0x00000000
Property: Read/Write

Bit 3130292827262524 
 FIKEY[23:16] 
Access WWWWWWWW 
Reset 00000000 
Bit 2322212019181716 
 FIKEY[15:8] 
Access WWWWWWWW 
Reset 00000000 
Bit 15141312111098 
 FIKEY[7:0] 
Access WWWWWWWW 
Reset 00000000 
Bit 76543210 
 FIRDIS FNBRF4F3F2F1F0 
Access R/WWWWWWW 
Reset 0000000 

Bits 31:8 – FIKEY[23:0] Fault Injection Key

ValueNameDescription
0x534649 PASSWD Writing any other value in this field aborts the write operation. Always reads as 0.

Bit 7 – FIRDIS Fault Injection Register Disable

ValueNameDescription
0 NO_EFFECT No effect
1 ACTIVE Disables the fault injection until the next hardware reset. The command is valid only if the flags SPDIFTX_WPSR.SDEE=0 and SPDIFTX_WPSR.NCE=0 and the other bits are cleared (F0=F1=F2=F3=F4=0).

Bit 5 – FNBR Fault Number

ValueNameDescription
0 SINGLE One error is injected in the selected register.
1 DOUBLE Two errors are injected in the selected register.

Bit 4 – F4 Single Fault for Write Protection Mode Register (SPDIFTX_WPMR)

ValueDescription
0 No effect.
1 Injects a single fault in the reinforced safety for the SPDIFTX_WPMR if 0x534649 (“SFI” in ASCII) is written in the FIKEY field at the same time. The flags SPDIFTX_ISR.SECE=1, SPDIFTX_WPSR.SDEE=1. If DUAL=1, the flag SPDIFTX_WPSR.NCE=1.

Bit 3 – F3 Single Fault for Channel Status Registers (SPDIFTX_CH1Sx/CH2Sx)

ValueDescription
0 No effect.
1 Injects a single fault in the reinforced safety for the SPDIFTX_CH1Sx/CH2Sx if 0x534649 (“SFI” in ASCII) is written in the FIKEY field at the same time. The flags SPDIFTX_ISR.SECE=1, SPDIFTX_WPSR.SDEE=1 and SPDIFTX_WPSR.NCE=1.

Bit 2 – F2 Single Fault for User Data Registers (SPDIFTX_CH1UDx/CH2UDx)

ValueDescription
0 No effect.
1 Injects a single fault in the reinforced safety for the SPDIFTX_CH1/2UDx if 0x534649 (“SFI” in ASCII) is written in the FIKEY field at the same time. The flags SPDIFTX_ISR.SECE=1 , SPDIFTX_WPSR.SDEE=1 and SPDIFTX_WPSR.NCE=1.

Bit 1 – F1 Single Fault for Interrupt Mask Register (SPDIFTX_IMR)

ValueDescription
0 No effect.
1 Injects a single fault in the reinforced safety for the SPDIFTX_IMR if 0x534649 (“SFI” in ASCII) is written in the FIKEY field at the same time. The flag SPDIFTX_ISR.SECE=1, SPDIFTX_WPSR.SDEE=1 and SPDIFTX_WPSR.NCE=1.

Bit 0 – F0 Single Fault for Mode Registers (SPDIFTX_MR and SPDIFTX_EMR)

ValueDescription
0 No effect.
1 Injects a single fault in the reinforced safety for the SPDIFTX_MR and SPDIFTX_EMR if 0x534649 (“SFI” in ASCII) is written in the FIKEY field at the same time. The flags SPDIFTX_ISR.SECE=1, SPDIFTX_WPSR.SDEE=1. If DUAL=1, the flag SPDIFTX_WPSR.NCE=1.