日志
S3F834B-SAMSUNG单片机解密/芯片解密
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龙芯世纪对芯片解密中的过错攻击技术、硬件安全分析、UV 攻击技术、EEPROM 和 Flash技术分析、安全保护位置的查找以及侵入式攻击与非侵入式攻击技术，龙腾芯片解密研究所均拥有透彻的理解和丰富的实战应用经验，经过多次反复实验，可以为每一款芯片提供最具经济价值、最具可靠性、最具成本控制优势的解密技术手法。
S3F834B Features
CPU
- SAM88 RC CPU core
Memory
- 64K x 8 bits program memory (ROM)
- 2.5K x 8 bits data memory (RAM)
Instruction Set
- 78 instructions
- Idle and stop instructions
86 I/O Pins
- 77-bit I/O port (44 pins sharing LCD signals)
- 9-bit Input port
Interrupts
- 8 interrupt levels and 21 interrupt sources
- Fast interrupt processing feature
8-Bit Basic Timer
- Watchdog timer function
- 4 kinds of clock source
8-Bit Timer/Counter 0
- Programmable 8-bit internal timer
- External event counter function
- PWM and capture function
8-Bit Timer/Counter 1
- Programmable 8-bit internal timer
- External event counter function
16-Bit Timer/Counter 2
- Programmable 16-bit internal timer
- External event counter function
Watch Timer
- Interval time: 50mS, 0.1S, 0.5S, and 1S
- 0.47/0.94/1.87/3.75 kHz Selectable buzzer output
Analog to Digital Converter
- 12-channel analog input
- 10-bit conversion resolution
PLL Frequency Synthesizer
- Level: 100mVp-p (min) - AMVCO range:
0.5MHz to 5MHz or 5MHz to 30MHz
- FMVCO range: 30 MHz to 130 MHz
- Level: 150mVp-p (min)
- FMVCO range: 30 MHz to 150 MHz
20-Bit Intermediate Frequency (IF) Counter
- Level: 100mVp-p (min)
- AMIF range: 100 kHz to 1 MHz
- FMIF range: 5 MHz to 15 MHz
LCD Controller/Driver
- 36 segments and 8 common terminals
- 8, 4, 3, 2 common selectable
- Internal or external resistor circuit for LCD bias
Two 8- bit UART
- Full-duplex serial I/O interface
- Four programmable operating modes
Two 8-bit Serial I/O Interface
- 8-bit transmit/receive mode
- 8-bit receive mode
- LSB-first or MSB-first transmission selectable
- Internal or External clock source
Low Voltage Reset (LVR)
- 2-Creteria voltage selectable (2.3V, 2.6V)
- En/Disable by smart option (ROM address: 3FH)
Two Power-Down Modes
- Idle: only CPU clock stops
- Stop: selected system clock and CPU clock stop
Oscillation Sources
- Crystal, ceramic or RC for main clock
- Main clock frequency: 0.4 MHz -12MHz
Instruction Execution Times
- 0.33 us at 12 MHz fx (minimum)
Operating Voltage Range
- -25°C to +85°C at
2.0 V to 3.6 V at 0.4 - 4.2 MHz
2.7 V to 3.6 V at 0.4 - 12 MHz
2.0 V to 3.6 V at 75 kHz
2.7 V to 3.6 V in PLL/IFC Mode
2.7V to 3.6V at 4.5/7.2/9 MHz
(PLL OSC at 75 kHz)
- -40°C to +85°C at
2.4 V to 3.6 V at 0.4 - 4.2 MHz
2.7 V to 3.6 V at 0.4 - 12 MHz
2.4V to 3.6V at 75 kHz
2.7 V to 3.6 V in PLL/IFC Mode
2.7V to 3.6V at 4.5/7.2/9 MHz
(PLL OSC at 75 kHz)
Operating Temperature Range
- -40°C to +85°C
Current Consumption
- Stop Current (in LVR Disable Mode)
1uA(typ) at VDD = 3 V
龙芯世纪长期致力于业界疑难芯片/芯片解密技术研究、芯片解密成本降低技术手法研究、芯片解密100%成功率技术研究、芯片软件解密技术研究等领域，已率先突破业内数以千计的芯片解密难题。
S3F834B Features
CPU
- SAM88 RC CPU core
Memory
- 64K x 8 bits program memory (ROM)
- 2.5K x 8 bits data memory (RAM)
Instruction Set
- 78 instructions
- Idle and stop instructions
86 I/O Pins
- 77-bit I/O port (44 pins sharing LCD signals)
- 9-bit Input port
Interrupts
- 8 interrupt levels and 21 interrupt sources
- Fast interrupt processing feature
8-Bit Basic Timer
- Watchdog timer function
- 4 kinds of clock source
8-Bit Timer/Counter 0
- Programmable 8-bit internal timer
- External event counter function
- PWM and capture function
8-Bit Timer/Counter 1
- Programmable 8-bit internal timer
- External event counter function
16-Bit Timer/Counter 2
- Programmable 16-bit internal timer
- External event counter function
Watch Timer
- Interval time: 50mS, 0.1S, 0.5S, and 1S
- 0.47/0.94/1.87/3.75 kHz Selectable buzzer output
Analog to Digital Converter
- 12-channel analog input
- 10-bit conversion resolution
PLL Frequency Synthesizer
- Level: 100mVp-p (min) - AMVCO range:
0.5MHz to 5MHz or 5MHz to 30MHz
- FMVCO range: 30 MHz to 130 MHz
- Level: 150mVp-p (min)
- FMVCO range: 30 MHz to 150 MHz
20-Bit Intermediate Frequency (IF) Counter
- Level: 100mVp-p (min)
- AMIF range: 100 kHz to 1 MHz
- FMIF range: 5 MHz to 15 MHz
LCD Controller/Driver
- 36 segments and 8 common terminals
- 8, 4, 3, 2 common selectable
- Internal or external resistor circuit for LCD bias
Two 8- bit UART
- Full-duplex serial I/O interface
- Four programmable operating modes
Two 8-bit Serial I/O Interface
- 8-bit transmit/receive mode
- 8-bit receive mode
- LSB-first or MSB-first transmission selectable
- Internal or External clock source
Low Voltage Reset (LVR)
- 2-Creteria voltage selectable (2.3V, 2.6V)
- En/Disable by smart option (ROM address: 3FH)
Two Power-Down Modes
- Idle: only CPU clock stops
- Stop: selected system clock and CPU clock stop
Oscillation Sources
- Crystal, ceramic or RC for main clock
- Main clock frequency: 0.4 MHz -12MHz
Instruction Execution Times
- 0.33 us at 12 MHz fx (minimum)
Operating Voltage Range
- -25°C to +85°C at
2.0 V to 3.6 V at 0.4 - 4.2 MHz
2.7 V to 3.6 V at 0.4 - 12 MHz
2.0 V to 3.6 V at 75 kHz
2.7 V to 3.6 V in PLL/IFC Mode
2.7V to 3.6V at 4.5/7.2/9 MHz
(PLL OSC at 75 kHz)
- -40°C to +85°C at
2.4 V to 3.6 V at 0.4 - 4.2 MHz
2.7 V to 3.6 V at 0.4 - 12 MHz
2.4V to 3.6V at 75 kHz
2.7 V to 3.6 V in PLL/IFC Mode
2.7V to 3.6V at 4.5/7.2/9 MHz
(PLL OSC at 75 kHz)
Operating Temperature Range
- -40°C to +85°C
Current Consumption
- Stop Current (in LVR Disable Mode)
1uA(typ) at VDD = 3 V
龙芯世纪长期致力于业界疑难芯片/芯片解密技术研究、芯片解密成本降低技术手法研究、芯片解密100%成功率技术研究、芯片软件解密技术研究等领域，已率先突破业内数以千计的芯片解密难题。