Rainbow Electronics ATR0621 - Manual (Page 2)

2
4890AS–GPS–09/05
ATR0621 [Preliminary]
1. Description
The GPS baseband processor ATR0621 includes a 16-channel GPS correlator and is based
on the ARM7TDMI
® processor core.
This processor has a high-performance 32-bit RISC architecture and very low power con-
sumption. In addition, a large number of internally banked registers result in very fast
exception handling, making the device ideal for real-time control applications. The ATR0621
has a USB device port. This port is compliant with the Universal Serial Bus (USB) V2.0 full-
speed device specification. The ATR0621 has a direct connection to off-chip memory, includ-
ing Flash, through the External Bus Interface (EBI).
The ATR0621 includes full GPS firmware, licensed from u-blox AG, which performs the basic
GPS operation, including tracking, acquisition, navigation and position data output. For normal
PVT (Position/Velocity/Time) applications, there is no need for off-chip Flash memory or ROM.
In order to be able to store configuration settings, connecting a serial EEPROM is supported.
For customer-specific applications, a Software Development Kit is available.
The ATR0621 is manufactured using the Atmel high-density CMOS technology. By combining
the ARM7TDMI microcontroller core with on-chip SRAM, 16-channel GPS correlator and a
wide range of peripheral functions on a monolithic chip, the ATR0621 provides a highly-flexi-
ble and cost-effective solution for GPS applications.