ATTINY261-15MZ Atmel, ATTINY261-15MZ Datasheet - Page 120

• Manufacturer Part Number: ATTINY261-15MZ
• Description: MCU AVR 2K FLASH 15MHZ 32-QFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY261-15MZ

• 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: 128 x 8
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Program Memory Size: 2KB (2K x 8)
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Connectivity: USI
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

120
ATtiny261/ATtiny461/ATtiny861
• Bits 5,4 - COM1B1S, COM1B0S: Comparator B Output Mode, Bits 1 and 0
These bits are the shadow bits of the COM1A1 and COM1A0 bits that are described in the sec-
tion
• Bits 3,2 - COM1D1, COM1D0: Comparator D Output Mode, Bits 1 and 0
These bits control the Behavior of the Waveform Output (OCW1D) and the connection of the
Output Compare pin (OC1D). If one or both of the COM1D1:0 bits are set, the OC1D output
overrides the normal port functionality of the I/O pin it is connected to. The complementary
OC1D output is connected only in PWM modes when the COM1D1:0 bits are set to “01”. Note
that the Data Direction Register (DDR) bit corresponding to the OC1D pin must be set in order to
enable the output driver.
The function of the COM1D1:0 bits depends on the PWM1D and WGM10 bit settings.
16-16
(non-PWM).
Table 16-16. Compare Output Mode, Normal Mode (non-PWM)
Table 16-17
to Fast PWM Mode.
Table 16-17. Compare Output Mode, Fast PWM Mode
Table 16-18 on page 121
bits are set to Phase and Frequency Correct PWM Mode.
COM1D1..0
COM1D1..0
“TCCR1A – Timer/Counter1 Control Register A” on page
00
01
10
11
00
01
10
11
shows the COM1D1:0 bit functionality when the PWM1D bit is set to a Normal Mode
shows the COM1D1:0 bit functionality when the PWM1D and WGM10 bits are set
OCW1D Behavior
Normal port operation.
Toggle on Compare Match.
Clear on Compare Match.
Set on Compare Match.
OCW1D Behavior
Normal port operation.
Cleared on Compare Match.
Set when TCNT1 = 0x000.
Cleared on Compare Match.
Set when TCNT1 = 0x000.
Set on Compare Match.
Clear when TCNT1 = 0x000.
shows the COM1D1:0 bit functionality when the PWM1D and WGM10
115.
Disconnected
Disconnected
Connected
Connected
Connected
Connected
Connected
Connected
OC1D Pin
OC1D Pin
Disconnected
Disconnected
Disconnected
Disconnected
Disconnected
Disconnected
Disconnected
7753F–AVR–01/11
Connected
OC1D Pin
OC1D Pin
Table