AT90USB1287-MUR Atmel, AT90USB1287-MUR Datasheet - Page 138

• Manufacturer Part Number: AT90USB1287-MUR
• Description: MCU AVR 128K FLASH 16MHZ 64QFN
• Manufacturer: Atmel
• Series: AVR® 90USBr

Specifications of AT90USB1287-MUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART, USB, USB OTG
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 48
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-VQFN Exposed Pad, 64-HVQFN, 64-SQFN, 64-DHVQFN
• Processor Series: AT90USBx
• Core: AVR8
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATSTK525, ATAVRISP2, ATAVRONEKIT, AT90USBKEY, ATEVK525, ATAVRQTOUCHX
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

14.10 16-bit Timer/Counter Register Description
14.10.1
14.10.2
138
AT90USB64/128
Timer/Counter1 Control Register A – TCCR1A
Timer/Counter3 Control Register A – TCCR3A
Figure 14-13. Timer/Counter Timing Diagram, with Prescaler (f
•
•
•
The COMnA1:0, COMnB1:0, and COMnC1:0 control the output compare pins (OCnA, OCnB,
and OCnC respectively) behavior. If one or both of the COMnA1:0 bits are written to one, the
OCnA output overrides the normal port functionality of the I/O pin it is connected to. If one or
both of the COMnB1:0 bits are written to one, the OCnB output overrides the normal port func-
tionality of the I/O pin it is connected to. If one or both of the COMnC1:0 bits are written to one,
the OCnC output overrides the normal port functionality of the I/O pin it is connected to. How-
ever, note that the Data Direction Register (DDR) bit corresponding to the OCnA, OCnB or
OCnC pin must be set in order to enable the output driver.
and ICF n
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit 7:6 – COMnA1:0: Compare Output Mode for Channel A
Bit 5:4 – COMnB1:0: Compare Output Mode for Channel B
Bit 3:2 – COMnC1:0: Compare Output Mode for Channel C
(PC and PFC PWM)
TOVn
(CTC and FPWM)
(Update at TOP)
TCNTn
TCNTn
OCRnx
(clk
as TOP)
clk
clk
I/O
(FPWM)
I/O
Tn
/8)
(if used
7
COM1A
1
R/W
0
7
COM3A
1
R/W
0
6
COM1A
0
R/W
0
6
COM3A
0
R/W
0
TOP - 1
TOP - 1
Old OCRnx Value
5
COM1B
1
R/W
0
5
COM3B
1
R/W
0
4
COM1B
0
R/W
0
4
COM3B
0
R/W
0
TOP
TOP
3
COM1C
1
R/W
0
3
COM3C
1
R/W
0
2
COM1C
0
R/W
0
2
COM3C
0
R/W
0
BOTTOM
TOP - 1
New OCRnx Value
clk_I/O
R/W
R/W
1
WGM1
1
0
1
WGM3
1
0
/8)
BOTTOM + 1
0
WGM1
0
R/W
0
0
WGM3
0
R/W
0
TOP - 2
TCCR1
A
TCCR3
A
7593K–AVR–11/09