Samsung S5PC100 User Manual page 1556

HDMI
SPDIFIN_IRQ_STATUS
wrong_signal_ir
1) Detection of stream header
Wait for matching of Pa, Pb; 0xF872, 0x4E1F respectively
Wait for the repetition time (From decoded Pc value or from user-set Pc in SPDIFIN_USER_VALUE.
repetition_time_manual according to SPDIFIN_CONFIG. PcPd_value_mode)
Check for matching of Pa, Pb on right time.
9.10-74
Bit
consecutive 'ch_status_recovered_ir' and read that
register each time; if these two channel status value are
same, you can rely on that value.
0 = No interrupt
1 = Clock recovery fail
Writing '0' has no effect. Writing '1' clears the interrupt
request.
Cannot recover clock from input because of tolerable
0
range violation (unlock) or because of no signal from
outside or because of non-biphase in non-preamble
duration
- Meaningless until ch_status_recovered_ir is asserted
initially after SPDIFIN_OP_CTRL. op_ctrl=01b
S5PC100 USER'S MANUAL (REV1.0)
Description Reset Value
0