ATMEGA32U4-MUR Atmel, ATMEGA32U4-MUR Datasheet - Page 133

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ATMEGA32U4-MUR

Manufacturer Part Number
ATMEGA32U4-MUR
Description
MCU AVR 16K FLASH 16MHZ 44VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet

Specifications of ATMEGA32U4-MUR

Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
26
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2.5K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-VQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA32U4-MUR
Manufacturer:
UCC
Quantity:
1 001
14.10.5
14.10.6
7766F–AVR–11/10
Timer/Counter1 Control Register C – TCCR1C
Timer/Counter3 Control Register C – TCCR3C
Table 14-6.
If external pin modes are used for the Timer/Countern, transitions on the Tn pin will clock the
counter even if the pin is configured as an output. This feature allows software control of the
counting.
The FOCnA/FOCnB/FOCnC bits are only active when the WGMn3:0 bits specifies a non-PWM
mode. When writing a logical one to the FOCnA/FOCnB/FOCnC bit, an immediate compare
match is forced on the waveform generation unit. The OCnA/OCnB/OCnC output is changed
according to its COMnx1:0 bits setting. Note that the FOCnA/FOCnB/FOCnC bits are imple-
mented as strobes. Therefore it is the value present in the COMnx1:0 bits that determine the
effect of the forced compare.
A FOCnA/FOCnB/FOCnC strobe will not generate any interrupt nor will it clear the timer in Clear
Timer on Compare Match (CTC) mode using OCRnA as TOP.
The FOCnA/FOCnB/FOCnB bits are always read as zero.
These bits are reserved for future use. For ensuring compatibility with future devices, these bits
must be written to zero when TCCRnC is written.
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
CSn2
Bit 7 – FOCnA: Force Output Compare for Channel A
Bit 4:0 – Reserved Bits
0
0
0
0
1
1
1
1
CSn1
0
0
1
1
0
0
1
1
7
FOC1A
W
0
7
FOC3A
W
0
Clock Select Bit Description
CSn0
6
FOC1B
W
0
6
R
0
0
1
0
1
0
1
0
1
Description
No clock source. (Timer/Counter stopped)
clk
clk
clk
clk
clk
External clock source on Tn pin. Clock on falling edge
External clock source on Tn pin. Clock on rising edge
5
FOC1C
W
0
5
R
0
I/O
I/O
I/O
I/O
I/O
/1 (No prescaling
/8 (From prescaler)
/64 (From prescaler)
/256 (From prescaler)
/1024 (From prescaler)
4
R
0
4
R
0
3
R
0
3
R
0
2
R
0
2
R
0
1
R
0
1
R
0
ATmega16/32U4
0
R
0
0
R
0
TCCR1C
TCCR3C
133

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