st20-gp6 STMicroelectronics, st20-gp6 Datasheet - Page 8

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

ST20-GP6
Memory subsystem
The ST20-GP6 on-chip memory system provides 60 Mbytes/s internal data bandwidth, supporting
pipelined 2-cycle internal memory access at 30 ns cycle times. The ST20-GP6 memory system
consists of SRAM, ROM and a programmable external memory interface (EMI).
8/123
Interrupts
128K
ROM
12 channel GPS
Programmable
hardware DSP
Real time
controller
controller
interface
Interrupt
memory
power
clock
radio
GPS
Low
Figure 2.1 ST20-GP6 architectural block diagram
SRAM
64K
communications
input/output
Test access
control unit
Diagnostic
services
2 UART
System
Parallel
Serial
ST20
CPU
port
ST20-GP6
.
.
.
16
Reset
Clock
User position
output in
ASCII