ATMEGA32U4-MUR Atmel, ATMEGA32U4-MUR Datasheet - Page 171
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ATMEGA32U4-MUR
Manufacturer Part Number
ATMEGA32U4-MUR
Description
MCU AVR 16K FLASH 16MHZ 44VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA16U4-MU.pdf
(433 pages)
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
Company:
Part Number:
ATMEGA32U4-MUR
Manufacturer:
UCC
Quantity:
1 001
- Current page: 171 of 433
- Download datasheet (9Mb)
15.12.8
15.12.9
15.12.10 OCR4C – Timer/Counter4 Output Compare Register C
7766F–AVR–11/10
OCR4A – Timer/Counter4 Output Compare Register A
OCR4B – Timer/Counter4 Output Compare Register B
• Bits 1:0 - TC49, TC48: Two MSB bits of the 10-bit accesses
If 10-bit accuracy is used, the Timer/Counter4 High Byte Register (TC4H) is used for temporary
storing the MSB bits (TC49, TC48) of the 10-bit accesses. The same TC4H register is shared
between all 10-bit registers within the Timer/Counter4. Note that special procedures must be fol-
lowed when accessing the 10-bit TCNT4 register via the 8-bit AVR data bus. These procedures
are described in section
The output compare register A is an 8-bit read/write register.
The Timer/Counter Output Compare Register A contains data to be continuously compared with
Timer/Counter4. Actions on compare matches are specified in TCCR4A. A compare match does
only occur if Timer/Counter4 counts to the OCR4A value. A software write that sets TCNT4 and
OCR4A to the same value does not generate a compare match.
A compare match will set the compare interrupt flag OCF4A after a synchronization delay follow-
ing the compare event.
Note that, if 10-bit accuracy is used special procedures must be followed when accessing the
internal 10-bit Output Compare Registers via the 8-bit AVR data bus. These procedures are
described in section
The output compare register B is an 8-bit read/write register.
The Timer/Counter Output Compare Register B contains data to be continuously compared with
Timer/Counter4. Actions on compare matches are specified in TCCR4. A compare match does
only occur if Timer/Counter4 counts to the OCR4B value. A software write that sets TCNT4 and
OCR4B to the same value does not generate a compare match.
A compare match will set the compare interrupt flag OCF4B after a synchronization delay follow-
ing the compare event.
Note that, if 10-bit accuracy is used special procedures must be followed when accessing the
internal 10-bit Output Compare Registers via the 8-bit AVR data bus. These procedures are
described in section
Bit
Read/Write
Initial value
Bit
Read/Write
Initial value
Bit
Read/Write
Initial value
MSB
MSB
MSB
R/W
R/W
R/W
7
0
7
0
7
1
“Accessing 10-Bit Registers” on page
“Accessing 10-Bit Registers” on page
“Accessing 10-Bit Registers” on page
R/W
R/W
R/W
6
0
6
0
6
1
R/W
R/W
R/W
5
0
5
0
5
1
R/W
R/W
R/W
4
0
4
0
4
1
R/W
R/W
R/W
3
0
3
0
3
1
159.
159.
R/W
R/W
R/W
159.
2
0
2
0
2
1
ATmega16/32U4
R/W
R/W
R/W
1
0
1
0
1
1
LSB
LSB
LSB
R/W
R/W
R/W
0
0
0
0
0
1
OCR44C
OCR4A
OCR4B
171
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