Voyager Emulation Platform (ATV2 Advanced) to Support Software Development
•
IAR Embedded Workbench
®
V3.20 Debugger or Atmel’s AVR Studio
®
Version 4.07 or
Above
•
Software Libraries and Application Notes
6511AS–SMIC–28Feb05
Note: This is a summary document. A complete document will be
available under NDA. For more information, please contact your
local Atmel sales office.
Description
The AT90SC6404RT is a low-power, high-performance, 8/16-bit microcontroller with ROM program memory, EEPROM
data memory, based on the secureAVR enhanced RISC architecture. By executing powerful instructions in a single clock
cycle, the AT90SC6404RT achieves throughputs close to 1 MIPS per MHz. Its Harvard architecture includes 32 general-
purpose working registers directly connected to the ALU, allowing two independent registers to be accessed in one single
instruction executed in one clock cycle.
The AT90SC6404RT uses the secureAVR that allows the linear addressing of up to 8M bytes of code and up to 16M bytes
of data as well as a number of new functional and security features.
The ability to map the EEPROM in the code space allows parts of the program memory to be reprogrammed in-system.
This technology combined with the versatile 8/16-bit CPU on a monolithic chip provides a highly flexible and cost-effective
solution to many smart card applications.
Additional security features include power, frequency and temperature protection logic, logical scrambling on program data
and addresses, Power Analysis countermeasures and memory accesses controlled by a supervisor mode.
Figure 1 shows the AT90SC6404RT block diagram.
Figure 1.
AT90SC6404RT secureAVR Enhanced RISC Architecture
Data Bus
8-bit
OTP
EEPROM
User Memory
Program
Memory
16
Instruction
Register
16
ALU
Instruction
Decoder
16
Control
Lines
Status
Register
DES/
Triple DES
DPA Counter
measures
CRC and
Checksum
Accelerator
Timer
8
Reset
Circuit
RST
8
General
Purpose
Registers
X
Y
Z
CLK
Access
Control
RNG
Secure
Control
GND
V
CC
PC
RAM
Data Memory
Interrupt
Unit
ISO 7816
Controller
ISO 7816
I/O Port 0
IN/OUT0
Access
Control
8
2
AT90SC6404RT
6511AS–SMIC–28Feb05
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