Rainbow Electronics ATtiny12 - Manual (Page 3)

3
ATtiny11/12
1006C–09/01
Figure 1. The ATtiny11 Block Diagram
PROGRAM
COUNTER
INTERNAL
OSCILLATOR
WATCHDOG
TIMER
STACK
POINTER
PROGRAM
FLASH
HARDWARE
STACK
MCU CONTROL
REGISTER
GENERAL-
PURPOSE
REGISTERS
INSTRUCTION
REGISTER
TIMER/
COUNTER
INSTRUCTION
DECODER
DATA DIR.
REG. PORTB
DATA REGISTER
PORTB
PROGRAMMING
LOGIC
OSCILLATORS
TIMING AND
CONTROL
INTERRUPT
UNIT
MCU STATUS
REGISTER
STATUS
REGISTER
ALU
PORTB DRIVERS
PB0-PB5
VCC
GND
CONTROL
LINES
+ -
ANALOG
COMP
ARA
T
O
R
8-BIT DATA BUS
Z