參數(shù)資料
型號(hào)： ST20GP6
英文描述： MAX 7000 CPLD 256 MC 208-RQFP
中文描述： GPS處理器
文件頁數(shù)： 17/116頁
文件大?。?/td> 1107K
代理商： ST20GP6
ST20-GP1
17/116
NCOphase0-11 registers
The
NCOphase0-11
registers contents are added to the accumulated phase to correct the carrier
for the final 1 Hz that cannot be resolved by the NCO frequency. This addition is not cumulative,
and the value must be updated regularly by the software as a result of carrier phase errors
measured on the satellite signal. The register holds a signed 7-bit field representing +/-180
degrees total in steps of 2.8125 degrees (360/128).
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
conventionally 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.
NCOphase0-11
DSP base address + #C4 to #EC
Write only
Bit
Bit field
Function
6:0
NCOphase
NCO phase as a signed 7-bit value representing +/-180 degrees total in steps of
2.8125 degrees (360/128).
Table 3.7
NCOphase0-11
register format
PRNinitialVal0-1
DSP base address + #100, #104
Write only
Bit
Bit field
Function
9:0
InitialValue
Initial value of the RTCA-SC159 satellite channel.
Table 3.8
PRNinitialVal0-1
register format
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST20-GP6 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:GPS PROCESSOR
ST20GP6CT33S 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:GPS PROCESSOR
ST20GP6CX33S 功能描述:射頻無線雜項(xiàng) GPS Processor RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel
ST20GP6CX33STR 功能描述:射頻無線雜項(xiàng) GPS Processor RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel
ST20GP6X33S 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:GPS PROCESSOR
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