BC41B143A-ds-001Pe CSR, BC41B143A-ds-001Pe Datasheet - Page 75

• Manufacturer Part Number: BC41B143A-ds-001Pe
• Description: Blue Core ROM
• Manufacturer: CSR

10.7.4 Multi Slot Operation
More than one SCO connection over the PCM interface is supported using multiple slots. Up to three SCO
connections can be carried over any of the first four slots.
10.7.5 GCI Interface
BlueCore4-ROM is compatible with the General Circuit Interface, a standard synchronous 2B+D ISDN timing
interface. The two 64Kbps B channels can be accessed when this mode is configured.
The start of frame is indicated by the rising edge of PCM_SYNC and runs at 8kHz. With BlueCore4-ROM in
Slave mode, the frequency of PCM_CLK can be up to 4.096MHz.
BC41B143A-ds-001Pe
SHORT_PCM_SYNC
LONG_PCM_SYNC
PCM_SYNC
PCM_OUT
PCM_CLK
PCM_IN
Figure 10.23: Multi Slot Operation with Two Slots and 8-bit Companded Samples
PCM_OUT
PCM_CLK
PCM_IN
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This material is subject to CSR’s non-disclosure agreement
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B1 Channel
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© Cambridge Silicon Radio Limited 2005
Figure 10.24: GCI Interface
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Production Information
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B2 Channel
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Device Terminal Descriptions
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