atmega32c1 ATMEL Corporation, atmega32c1 Datasheet - Page 8

• Manufacturer Part Number: atmega32c1
• Description: Atmega32m1 Automotive 8-bit Avr Microcontroller With 32k/64k Bytes In-system Programmable Flash
• Manufacturer: ATMEL Corporation

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Block Diagram
ATmega32/64/M1/C1
Figure 2-1.
The AVR core combines a rich instruction set with 32 general purpose working registers. All the
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.
The ATmega32/64/M1/C1 provides the following features: 32K/64K bytes of In-System Pro-
grammable Flash with Read-While-Write capabilities, 1024/2048 bytes EEPROM, 2048/4096
bytes SRAM, 27 general purpose I/O lines, 32 general purpose working registers, one Motor
Power Stage Controller, two flexible Timer/Counters with compare modes and PWM, one UART
with HW LIN, an 11-channel 10-bit ADC with two differential input stages with programmable
gain, a 10-bit DAC, a programmable Watchdog Timer with Internal Individual Oscillator, an SPI
serial port, an On-chip Debug system and four software selectable power saving modes.
Block Diagram
Flash Program
Control Lines
Instruction
Instruction
Memory
Register
Decoder
Program
Counter
Current Source
and Control
EEPROM
Registrers
I/O Lines
Purpose
General
SRAM
Data Bus 8-bit
Status
32 x 8
Data
ALU
HW LIN/UART
Comparators
7647A–AVR–02/08
Watchdog
Interrupt
Timer
Timer 0
4 Analog
Timer 1
MPSC
ADC
Unit
Unit
SPI
DAC
CAN