Current Development Tools
• Hardware Emulation Module (for the Motorola MMDS05 Development System)
– Emulation Module (AT05SC3208R-EM3)
Description
The AT05SC3208R is a member of Atmel’s AT05SC family of single chip microcontrollers. Designed specifically for Smart-
cards, embedded conditional access systems and other security conscious systems, these devices are based on the
industry-standard M68HC05 low-power core and its instruction set.
The AT05SC3208R is designed to give a high level of protection against physical and power analysis attacks, and includes
hardware features to assist in protecting against SPA and DPA attacks. On-board CRC and RNG modules are provided to
assist in the design of high-security applications.
On-board memory comprises 32768 bytes of ROM, 1024 bytes of RAM and 8192 bytes of EEPROM. The EEPROM fea-
tures 64-byte write, 2 ms program time, 2 ms erase time, typically more than 1,000,000 write/erase cycles, and greater
than 10 years data retention. Application areas for the AT05SC3208R include GSM Mobile Phones, Finance and Set-top
Boxes.
Figure 1. AT05SC3208R Block Diagram
ROM – 32768 bytes
(including 16 bytes for vectors)
RAM – 1024 bytes
EEPROM – 8192 bytes
(including 16 control bytes
and 48 OTP bytes)
Charge
Pump
EEPROM
Oscillator
DPA Logic
Random Number
Generator (RNG)(1)
DES Module
CRC Module
CLK
÷ 4/2/1
Control Logic
16 Bit Timer
with
prescaler
Time Base
and
Watchdog
RESET
VDD
VSS
AT05SC CPU
Security Logic
Interrupt
Control
PA0
SCI
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1554AS–15Nov01