User's Manual

FLC-CBM202 Datasheet
Flaircomm Microelectronics Confidential
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 Hardware on the CBM202 for sending data to and from a SCO connection.
 Up to 3 SCO connections on the PCM interface at any one time.
 PCM interface master, generating PCM_SYNC and PCM_CLK.
 PCM interface slave, accepting externally generated PCM_SYNC and PCM_CLK.
 Various clock formats including:
 Long Frame Sync
 Short Frame Sync
 GCI timing environments
 13-bit or 16-bit linear, 8-bit μ-law or A-law commanded sample formats.
 Receives and transmits on any selection of 3 of the first 4 slots following PCM_SYNC.
The PCM configuration options are enabled by setting the PS Key PSKEY_PCM_CONFIG32.
4.6.1.1 PCM Interface Master/Slave
When configured as the master of the PCM interface, CBM202 generates PCM_CLK and
PCM_SYNC.
PCM_OUT
PCM_CLK
PCM_IN
PCM_SYNC
Figure 4: PCM Interface Master
Figure 5: PCM Interface Slave
4.6.1.2 PCM_CLK and PCM_SYNC Generation
CBM202 has 2 methods of generating PCM_CLK and PCM_SYNC in master mode: