Voyager Emulation Platform (ATV2 & ATV4) to Support Software Development
•
IAR Embedded Workbench
®
V4.21 Debugger or Above
•
Software Libraries and Application Notes
6547AS–SPD–29Mar07
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 AT90SC12036RU is a low-power, high-performance, 8-bit microcontroller with ROM and EEPROM memory, based on
the AVR enhanced RISC architecture.
By executing powerful instructions in a single clock cycle, the AT90SC12036RU 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.
In addition to the 120K bytes of embedded ROM, the AT90SC12036RU includes 36K bytes of Atmel’s high density
EEPROM. 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-bit CPU on a monolithic chip provides a highly flexible and cost-
effective solution to many smart card applications.
The AT90SC12036RU can also be configured to offer compatibility with the AT90SC6436RT.
Figure 1 shows a block diagram of the AT90SC12036RU
Figure 1.
AT90SC12036RU AVR Enhanced RISC Architecture
OTP
EEPROM
User Memory
Access
Control
Data Bus
8-bit
Random
Number
Generator
PC
ROM
Program
Memory
16
Instruction
Register
16
8
General
Purpose
Registers
x
y
z
Access
Control
RAM
Data Memory
V
CC
8
ALU
Instruction
Decoder
16
Control
Lines
Status
Register
8
Interrupt
Unit
ISO 7816
I/O Port
Timer
Secure
Control
GND
CLK
IN/OUT
2
AT90SC12036RU
6547AS–SPD–29Mar07
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