ATMEGA8HVD-4MX Atmel, ATMEGA8HVD-4MX Datasheet - Page 74

• Manufacturer Part Number: ATMEGA8HVD-4MX
• Description: MCU AVR 8K FLASH 2.1-8V 4MHZ QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8HVD-4MX

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 5
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 2.4 V
• Data Converters: A/D 1x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 18-MLF® Exposed Pad (Staggered Leads), DFN
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32ATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Connectivity: -

16. Timer/Counter(T/C0,T/C1)
16.1
16.2
74
Features
Overview
ATmega4HVD/8HVD
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Timer/Counter n is a general purpose 8-/16-bit Timer/Counter module, with two/one Output
Compare units and Input Capture feature.
ATmega4HVD/8HVD has two Timer/Counters, Timer/Counter0 and Timer/Counter1. The
functionality for both Timer/Counters is described below. Timer/Counter0 and Timer/Counter1
have different Timer/Counter registers, as shown in
The Timer/Counter general operation 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. The device-specific I/O Register and bit
locations are listed in the
Figure 16-1. 8-/16-bit Timer/Counter Block Diagram
Clear Timer on Compare Match (Auto Reload)
Input Capture unit
Four Independent Interrupt Sources (TOVn, OCFnA, OCFnB, ICFn)
8-bit Mode with Two Independent Output Compare Units
16-bit Mode with One Independent Output Compare Unit
TCCRnA
TCNTnH
OCRnB
=
Timer/Counter
”Register Description” on page
Direction
Count
Clear
TCNTnL
TCCRnB
OCRnA
=
Control Logic
TOP
Figure
Detector
”Register Summary” on page
Edge
clk
=
Tn
16-1. CPU accessible I/O Registers,
86.
Canceler
Fixed TOP value
( From Prescaler )
Noise
Clock Select
Detector
Edge
TOVn (Int. Req.)
OCnA (Int. Req.)
OCnB (Int. Req.)
ICFn (Int. Req.)
8052B–AVR–09/08
151.
ICPn1
ICPn0
Tn