AT43USB351M_04 Datasheet, PDF (5/10 Pages) ATMEL Corporation – Full-speed/ Low-speed USB Microcontroller with ADC and PWM

Figure 3. The AT43USB351M Enhanced RISC Architecture
12K x 16
Program
Memory
Program
Counter
Status and
Control
Instruction
Register
32 x 8
General-purpose
Registers
Instruction
Decoder
Control
Lines
ALU
1024 x 8
SRAM
19 GPIO
Lines
USB
Function
AT43USB351M
Interrupt
Unit
8-bit
Timer/Counter
16-bit
Timer/Counter
Watchdog
Timer
SPI Unit
ADC
5
3302CS–USB–2/04