48.7.11 SPDIF Transmitter Subframe Index
| Name: | SPDIFTX_SFI |
| Offset: | 0x24 |
| Reset: | 0x0000017F |
| Property: | Read-only |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| Access | |||||||||
| Reset |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| Access | |||||||||
| Reset |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| SFI[9:8] | |||||||||
| Access | R | R | |||||||
| Reset | 0 | 1 | |||||||
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| SFI[7:0] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
Bits 9:0 – SFI[9:0] Transmit Subframe Index
Index of the currently sent subframe.
Even values correspond to channel 1. Odd values correspond to channel 2.
As specified by the IEC-60958 standard, there are 192 × 2 subframes.
Due to the asynchronous transfer, a minimum of two and a maximum of three accesses must be performed to know the currently sent subframe index. When two successive reads of this register give the same value, the data is valid.