ATMEGA64M1-15MZ Atmel, ATMEGA64M1-15MZ Datasheet - Page 119

• Manufacturer Part Number: ATMEGA64M1-15MZ
• Description: MCU AVR 64KB FLASH 3PSC 32-VQFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA64M1-15MZ

• Package / Case: 32-VQFN
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Speed: 16MHz
• Eeprom Size: 2K x 8
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Program Memory Size: 64KB (64K x 8)
• Data Converters: A/D 11x10b; D/A 1x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Connectivity: CAN, LIN, SPI, UART/USART
• Core Size: 8-Bit
• Processor Series: ATMEGA64x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATADAPCAN01
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Lead Free Status / Rohs Status: Details

13.7.1
7647G–AVR–09/11
Compare Output Mode and Waveform Generation
Figure 13-5. Compare Match Output Unit, Schematic
The general I/O port function is overridden by the Output Compare (OCnx) from the Waveform
Generator if either of the COMnx1:0 bits are set. However, the OCnx pin direction (input or
output) is still controlled by the Data Direction Register (DDR) for the port pin. The Data Direc-
tion Register bit for the OCnx pin (DDR_OCnx) must be set as output before the OCnx value is
visible on the pin. The port override function is generally independent of the Waveform Gener-
ation mode, but there are some exceptions. Refer to
for details.
The design of the Output Compare pin logic allows initialization of the OCnx state before the
output is enabled. Note that some COMnx1:0 bit settings are reserved for certain modes of
operation.
The COMnx1:0 bits have no effect on the Input Capture unit.
The Waveform Generator uses the COMnx1:0 bits differently in normal, CTC, and PWM
modes. For all modes, setting the COMnx1:0 = 0 tells the Waveform Generator that no action
on the OCnx Register is to be performed on the next compare match. For compare output
actions in the non-PWM modes refer to
Table 13-2 on page
Table 13-3 on page
A change of the COMnx1:0 bits state will have effect at the first compare match after the bits
are written. For non-PWM modes, the action can be forced to have immediate effect by using
the FOCnx strobe bits.
COMnx1
COMnx0
FOCnx
clk
I/O
See “16-bit Timer/Counter Register Description” on page 130.
130, and for phase correct and phase and frequency correct PWM refer to
131.
Waveform
Generator
Atmel ATmega16/32/64/M1/C1
Table 13-1 on page
D
D
D
PORT
DDR
OCnx
Q
Q
Q
Table
13-1,
130. For fast PWM mode refer to
1
0
Table 13-2
and
OCnx
Table 13-3
Pin
119