• gpProtocolTag indicates the protocol with which to reconfigure the receiver.

• Currently supported protocols are SiRF and NMEA. ProtocolParams specifies the configuration of the protocol in either case.

• If NMEA is specified, ProtocolParams.npNMEA is assumed valid; ProtocolPArams.spSiRF is assumed valid if SiRF is specified.

typedef struct {
  GPSPROTOCOL gpProtocolTag;
  GPS_PROTOCOL_PARAMS ProtocolParams;
} GPS_PROTOCOL_SWITCH;