ATTINY861A-SU Atmel, ATTINY861A-SU Datasheet - Page 69
ATTINY861A-SU
Manufacturer Part Number
ATTINY861A-SU
Description
IC, MCU, 8BIT, 8K FLASH, 20SOIC
Manufacturer
Atmel
Datasheet
1.ATTINY461A-MU.pdf
(292 pages)
Specifications of ATTINY861A-SU
Controller Family/series
ATtiny
No. Of I/o's
16
Eeprom Memory Size
512Byte
Ram Memory Size
512Byte
Cpu Speed
20MHz
No.
RoHS Compliant
Core Size
8bit
Program Memory Size
8KB
Oscillator Type
External, Internal
Rohs Compliant
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATTINY861A-SUR
Manufacturer:
Atmel
Quantity:
950
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11. Timer/Counter0
11.1
11.2
11.2.1
8197B–AVR–01/10
Features
Overview
Registers
•
•
•
•
•
Timer/Counter0 is a general purpose 8/16-bit Timer/Counter module, with two/one Output Com-
pare units and Input Capture feature.
The general operation of Timer/Counter0 is described in 8/16-bit mode. A simplified block dia-
gram of the 8/16-bit Timer/Counter is shown in
including I/O bits and I/O pins, are shown in bold. For actual placement of I/O pins, refer to
out ATtiny261A/461A/861A” on page
in the
Figure 11-1. 8-/16-bit Timer/Counter Block Diagram
The Timer/Counter0 Low Byte Register (TCNT0L) and Output Compare Registers (OCR0A and
OCR0B) are 8-bit registers. Interrupt request (abbreviated Int.Req. in
Clear Timer on Compare Match (Auto Reload)
One Input Capture unit
Four Independent Interrupt Sources (TOV0, OCF0A, OCF0B, ICF0)
8-bit Mode with Two Independent Output Compare Units
16-bit Mode with One Independent Output Compare Unit
“Register Description” on page
TCCRnA
TCNTnH
OCRnB
=
Timer/Counter
Direction
Count
Clear
TCNTnL
TCCRnB
OCRnA
=
82.
2. Device-specific I/O Register and bit locations are listed
Control Logic
TOP
Figure
Detector
Edge
clk
=
Tn
11-1. CPU accessible I/O Registers,
Canceler
Fixed TOP value
( From Prescaler )
Noise
Figure
Clock Select
Detector
Edge
TOVn (Int. Req.)
11-1) signals are all
Comparator Ouput )
OCnA (Int. Req.)
OCnB (Int. Req.)
ICFn (Int. Req.)
( From Analog
ICPn
Tn
“Pin-
69
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