Input Payload Capability (INPAY) – Offset 6
This register resides in Primary well and reset by platform reset.
Bit Range | Default | Access | Field Name and Description |
15:0 | 0000h | RW/L | Input Payload Capability (INPAY) Indicates the total input payload available on the link. This does not include bandwidth used for response. This measurement is in 16-bit word quantities per 48 kHz frame. The default link clock speed of 24.000 MHz provides 500 bits per frame, or 31.25 words in total. 36 bits are used for response, leaving 29 words for data payload.
Note that this value does not reflect any bandwidth increase due to support for multiple SDI lines.
00h: 0 words
01h: 1 word payload
...
FFh: 255h word payload
Note: In the event that multiple links is supported (GCAP2.LCOUNT ) 0), the payload advertised will be the lowest common denominator offered by the default clock frequency on each link.
Locked when FNCFG.BCLD = 1. |