ATTINY861-15MZ Atmel, ATTINY861-15MZ Datasheet - Page 72

• Manufacturer Part Number: ATTINY861-15MZ
• Description: MCU AVR 8K FLASH 15MHZ 32-QFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY861-15MZ

• Package / Case: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Speed: 16MHz
• Number Of I /o: 16
• Eeprom Size: 512 x 8
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Program Memory Size: 8KB (8K x 8)
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Connectivity: USI
• Core Size: 8-Bit
• Processor Series: ATTINY8x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SPI
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRMC320
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 11 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

14. Timer/Counter0
14.1
14.2
14.2.1
72
Features
Overview
ATtiny261/461/861
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 Timer/Counter0 general operation is described in 8-/16-bit mode. A simplified block diagram
of the 8-/16-bit Timer/Counter is shown in
to
I/O pins, are shown in bold. The device-specific I/O Register and bit locations are listed in the
”Register Description” on page
Figure 14-1. 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 to Int.Req. in
all visible in the Timer Interrupt Flag Register (TIFR). All interrupts are individually masked with
the Timer Interrupt Mask Register (TIMSK). TIFR and TIMSK are not shown in the figure.
In 16-bit mode the Timer/Counter consists one more 8-bit register, the Timer/Counter0 High
Byte Register (TCNT0H). Furthermore, there is only one Output Compare Unit in 16-bit mode as
the two Output Compare Registers, OCR0A and OCR0B, are combined to one 16-bit Output
Compare Register. OCR0A contains the low byte of the word and OCR0B contains the high byte
of the word. When accessing 16-bit registers, special procedures described in section
ing Registers in 16-bit Mode” on page 80
Clear Timer on Compare Match (Auto Reload)
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
”Pinout ATtiny261/461/861” on page
TCCRnA
TCNTnH
OCRnB
=
Timer/Counter
84.
Direction
Count
Clear
TCNTnL
TCCRnB
OCRnA
=
2. CPU accessible I/O Registers, including I/O bits and
must be followed.
Figure
Control Logic
14-1. For the actual placement of I/O pins, refer
TOP
Detector
Edge
clk
=
Tn
Canceler
Fixed TOP value
( From Prescaler )
Noise
Clock Select
Detector
Edge
TOVn (Int. Req.)
Comparator Ouput )
OCnA (Int. Req.)
OCnB (Int. Req.)
ICFn (Int. Req.)
( From Analog
Figure
ICPn
Tn
14-1) signals are
2588B–AVR–11/06
”Access-