st20-gp6 STMicroelectronics, st20-gp6 Datasheet - Page 18

• Manufacturer Part Number: st20-gp6
• Description: Gps Processor
• Manufacturer: STMicroelectronics

ST20-GP6
PRNinitialVal0-1 registers
The initial value for the two RTCA-SC159 capable satellites channels should be written to the
PRNinitialVal0-1 registers. The value can be found in the RTCA-SC159 Specification .
Note: The value written to the register is the Initial Value defined by RTCA-SC159 for the PRN
required. The conversion from ‘big-endian’ as used in the specification to ‘little-endian’ as conven-
tionally used in ST20 architectures has been implemented in the hardware.
If uninitialized by the software, this register defaults to 11 1111 1111 (#3FF) as required for GPS
satellites.
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PRNinitialVal0-1
Bit
9:0
Bit field
InitialValue
DSP base address + #100, #104
Table 3.8 PRNinitialVal0-1 register format
Function
Initial value of the RTCA-SC159 satellite channel.
Write only