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PVDM (packet voice data module) generic bus

  • US 7,200,692 B2
  • Filed: 03/10/2004
  • Issued: 04/03/2007
  • Est. Priority Date: 03/10/2004
  • Status: Expired due to Fees
First Claim
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1. A system comprising:

  • a Packet Voice Data Module (PVDM) having a set of bi-directional data inputs/outputs configured as an interface between a master device coupled to a DMA engine and a slave device having a set of addressable registers including egress mailbox registers, ingress mailbox registers, and indirect access address registers, with the interface comprising;

    a set of master address inputs configured to couple to PVDM to the DMA engine, with the master address for-transmitting address data from the DMA engine to the slave;

    a master data strobe input configured to couple the PVDM to the DMA engine, with the master data strobe for strobing data;

    a master read/write signal input configured to couple the PVDM to the DMA engine, with master read/write signal for indicating whether data is to be read from or written to the slave;

    a set of slave select signal inputs configured to couple the PVDM to the DMA engine, with slave select signals for selecting one of a plurality of slaves;

    a slave wait signal output configured to couple the PVDM to the DMA engine, with the slave wait signal asserted by a slave to delay a data transfer;

    a slave reset signal input configured to couple the PVDM to the DMA engine, with the slave reset signal resetting the slave when asserted;

    a clock signal line output configured to couple the PVDM to the DMA engine and to receive a clock signal; and

    a clock signal line input configured to couple the PVDM to the DMA engine and to receive a clock input signal.

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