UPD77533 datasheet(38/104 Pages) RENESAS

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Data Sheet S15671EJ4V0DS

µµµµPD77533

9. OTHER FUNCTIONS

9.1

Receiver ID Notification

The following two commands are used to notify the LS (location server) of a receiver’s ID number. For details, see

16.18 CA Parameter Set, and 16.19 CB Parameter Set.

• CA Parameter Set (CMD-ID: 0x40)

This command sets or sends notification of the setting of the GPS module’s unit ID and software version.

• CB Parameter Set (CMD-ID: 0x41)

This command sets or sends notification of the setting of the parameters when the positioning start command

(!cb) is issued by the

µPD77533.

10. OVERVIEW OF COMMAND FUNCTIONS

The configuration of a system using the

µPD77533 is shown below. This section will explain the command

interface used between the

µPD77533 and the host CPU.

Figure 10-1. Diagram of GPS Positioning System Configuration

Table 10-1. Function of Each Block

Block

Function

Radio Frequency

Receives radio waves from a GPS satellite and transfers them to the

µPD77533.

µ PD77533

Consists of a DSP core and logic circuits. Processes the signals sent from the RF

block and transfers them to the LS.

Host CPU

Controls the operations of the

µPD77533 and is the mediator in communication

between the

µPD77533 and the LS.

Location Server

Determines the position of the GPS receiver based on the results of the signal

processing performed by the

µPD77533.

PD77533

Host CPU

Communication

via baseband

GPS receiver

Communication

via UART

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