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Selective call receiver programming system

  • US 5,247,519 A
  • Filed: 06/20/1990
  • Issued: 09/21/1993
  • Est. Priority Date: 06/20/1990
  • Status: Expired due to Term
First Claim
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1. A radio frequency programmable selective call receiver comprising:

  • a receiver for providing a received signal comprising a recovered address, a command code, and a programming field;

    a decoder for determining the selection of the selective call receiver in response to correlating the recovered address with a predetermined address stored in a non-volatile memory, the non-volatile memory including a plurality of registers for storing a plurality of configuration words that determine, at least in part, operational characteristics of the selective call receiver; and

    control means for selecting and executing one of a bulk or a selective programming mode in response to a data word recovered from the programming field;

    the bulk programming mode being selected and executed when;

    the data word is an unmasked data word;

    the bulk programming mode operating to modify at least one programmable option of the radio frequency programmable selective call receiver in a range of the plurality of registers by re-writing all programmable options in the range of the plurality of registers with data included in the received unmasked data word; and

    the selective programming mode being selected and executed when;

    the data word is a masked data word;

    the selective programming mode operating to modify a selected at least one programmable option of the radio frequency programmable selective call receiver included in at least one specified register in the plurality of registers by rewriting only the at least one specified register with data that changes only the selected at least one programmable option, preserving any other options included in the at least one specified register, the data being derived from the masked data word, a received data word corresponding with the masked data word, and a data word read from the at least one specified register in the plurality of registers before programming.

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