AT94S_05 ATMEL Corporation, AT94S_05 Datasheet - Page 3

• Manufacturer Part Number: AT94S_05
• Description: Secure 5K - 40K Gates of At40k FPGA with 8-bit Microcontroller, up to 36 Kbytes of SRAM and On-chip Program Storage Eeprom
• Manufacturer: ATMEL Corporation

Figure 1-1.
2314E–FPSLI–6/05
Configuration Logic
Configuration
EEPROM
and Chip
For ISP
Erase
I/O
AT94S Architecture
The embedded AVR core achieves throughputs approaching 1 MIPS per MHz by executing
powerful instructions in a single-clock-cycle, and allows system designers to optimize power
consumption versus processing speed. The AVR core is based on an enhanced RISC architec-
ture that combines a rich instruction set with 32 general-purpose working registers. All 32
registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent
registers to be accessed in one single instruction executed in one clock cycle. The resulting
architecture is more code-efficient while achieving throughputs up to ten times faster than con-
ventional CISC microcontrollers at the same clock frequency. The AVR executes out of on-chip
SRAM. Both the FPGA configuration SRAM and AVR instruction code SRAM are automatically
loaded at system power-up using Atmel’s in-system programmable AT17 Series EEPROM con-
figuration memories, which are part of the AT94S Multi-chip Module (MCM).
State-of-the-art FPSLIC design tools, System Designer, were developed in conjunction with the
FPSLIC architecture to help reduce overall time-to-market by integrating microcontroller devel-
opment and debugging, FPGA development, place and route, and complete system
co-verification in one easy-to-use software tool.
SRAM Memory
Up to 16K x 16
Program
Address Lines
Decoded
Up to 16
5 - 40K Gates FPGA
PROGRAMMABLE I/O
Multiply
16K x 8
SRAM
Up to
with
Data
AT94S Secure Family
Timer/Counters
16 Prog. I/O
2-wire Serial
Two Serial
Two 8-bit
UARTs
Lines
Unit
4 Interrupt Lines
I/O
I/O
I/O
3