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UPD77533 Datasheet(PDF) 18 Page - Renesas Technology Corp

Part # UPD77533
Description  MOS INTEGRATED CIRCUIT
PDF  104 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

UPD77533 Datasheet(HTML) 18 Page - Renesas Technology Corp

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Data Sheet S15671EJ4V0DS
16
µµµµPD77533
3.1.2 Internal parameter initialization
The internal parameters of the
µPD77533 and their initial values are shown in Table 3-2 below.
Table 3-2. Initial Values of Internal Parameters
Parameter Name
Related Command
CMD-ID
(EXT-ID)
Initial Value
Meaning of Initial Value
Baud rate
Baud Rate Change
0x01
2
9600 bps
Reference frequency
FCC Reference
Frequency
0x02
0xE10000
14.4 MHz. The parameter value is set to the
reference frequency multiplied by 1.024
(initial value: 14.4 MHz x 1.024 =
0xE10000).
Power save mode
Power Control
0x03
0
No shift to power save mode; RUN mode is
entered.
Power supply
RF Power Control
0x05
0
Power off
FCC control
Frequency Calibration
Control
0x06
0
No FCC control
TXACTV control
TXACTV Control
0x07
0
No TXACTV control
Sleep mode
Sleep Timer
0x12
0
HALT mode is entered after Sleep Timer
timeout
Sleep Timer timer
value (time until
sleep)
0
Sleep state is not entered
Timer value of
character timeout
(time until timeout)
Command Timeout
0x13
0
Timeout not detected.
Software version
D77533 Software
Version
0x31
1
Ver.1.0
Status (status of
µPD77533 signal
processing)
Processing Status
Request
0x33
−
Idle
Number of
processed satellites
Rest Processing
0x34
0
0
Total number of
satellites that should
be processed
00
Current number of
times positioning
performed
00
Total number of
times positioning
performed
00
Error contents
Error Status
0x3F
−
No initial value
Doppler search
range
Doppler Search Range
0x57
0x0168
Search range = 360 Hz
Flow points
Flow Point Control
0x7F (0x00)
All 0
Flow point output not controlled



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