GP2021 Datasheet, PDF (2/62 Pages) Mitel Networks Corporation – GPS 12 channel Correlator Advance Information

GP2021
HEADING
TABLE OF CONTENTS
TYPICAL GPS RECEIVER
PIN DESCRIPTION
Differences between Real and Complex_Input Mode
FUNCTIONAL DESCRIPTION
12 CHANNEL CORRELATOR
Clock Generator
Timebase Generator
Status Registers
Sample Latches
Address Decoder
Bus Interface
TRACKING MODULES
Carrier DCO
Code DCO
Carrier Cycle Counter
C/A Code Generator
Source Selector
Carrier Mixers
Code Mixers
Accumulate and Dump
Code Phase Counter
Code Slew Counter
Epoch Counter
PERIPHERAL FUNCTIONS
Dual UART
Receiver
Transmitter
Reset
Channel Loopback
Real Time Clock (RTC) and Watchdog
Power and Reset Control
Power Down Mode
Hardware Reset Generation
System Error Status Register
Discrete I/O
Digital System Test Interface
MICROPROCESSOR INTERFACE
General Interface Timing
Write Cycle to Read Cycle Timings
Write Cycle to Write Cycle Timings
Notes about Interface Timing Constraints
ARM System Mode
Address Map
Control Signals
ARM System Timing
Wait State Generation
Debug (Abort) Function
Standard Interface Mode
Control Signals
Motorola Style Interface
Intel 80186 Style Interface
Intel 486 Style Interface
Reset
Register Addressing
CONTROLLING THE GP2021
Search Operation
Carrier DCO Programming
Code DCO Programming
Code Generator Programming
Reading the Accumulated Data
Search on Other Code Phases
Data Bit Synchronisation
Reading the Measurement Data
Preset Mode
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