AT90S8515

Manufacturer Part NumberAT90S8515
Description8-bit microcontroller with 8K bytes in-system programmable flash, 2.7-6.0V
ManufacturerATMEL Corporation
AT90S8515 datasheet
 
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Page 8/112:

The AVR RISC Architecture

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AT90S8515
8
Figure 4. The AT90S8515 AVR RISC Architecture
Program
4K x 16
Counter
Program
Memory
Instruction
Register
Instruction
Decoder
Control Lines
A flexible interrupt module has its control registers in the I/O space with an additional
global interrupt enable bit in the status register. All the different interrupts have a sepa-
rate interrupt vector in the interrupt vector table at the beginning of the program
memory. The different interrupts have priority in accordance with their interrupt vector
position. The lower the interrupt vector address, the higher the priority.
Data Bus 8-bit
Status
Control
and Test
Registers
Interrupt
32 x 8
Unit
General
Purpose
Registers
SPI
Unit
Serial
UART
ALU
8-bit
Timer/Counter
16-bit
Timer/Counter
with PWM
512 x 8
Data
SRAM
Watchdog
Timer
Analog
512 x 8
EEPROM
Comparator
32
I/O Lines
0841G–09/01