User's Manual
FLC-BTM403 Datasheet
Flaircomm Microelectronics Confidential
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Figure 3: Configured PCM as a Master
When PCM is configured as the slave, the module accepts PCM_CLK rates up to 2048kHz.
Figure 4: Configured PCM as a Slave
4.3.2 Long Frame Sync
Long Frame Sync is the name given to a clocking format that controls the transfer of PCM data
words or samples. In Long Frame Sync, the rising edge of PCM_SYNC indicates the start of the
PCM word. When the module is configured as PCM master, generating PCM_SYNC and
PCM_CLK, then PCM_SYNC is 8-bits long. When the module is configured as PCM Slave,
PCM_SYNC may be from two consecutive falling edges of PCM_CLK to half the PCM_SYNC rate,
i.e., 62.5ยตs long.