ATTINY20-EK1 Atmel, ATTINY20-EK1 Datasheet - Page 103
![no-image](/images/manufacturer_photos/0/0/78/atmel_sml.jpg)
ATTINY20-EK1
Manufacturer Part Number
ATTINY20-EK1
Description
KIT EVAL TOUCH ATTINY20
Manufacturer
Atmel
Datasheet
1.ATTINY20-EK1.pdf
(224 pages)
Specifications of ATTINY20-EK1
Sensor Type
*
Sensing Range
*
Interface
*
Sensitivity
*
Voltage - Supply
*
Embedded
*
Utilized Ic / Part
*
Silicon Manufacturer
Atmel
Core Architecture
AVR
Core Sub-architecture
TinyAVR
Kit Contents
Board
Svhc
No SVHC (15-Dec-2010)
Mcu Supported Families
ATtiny20
Tool / Board Applications
Microcontroller
Rohs Compliant
Yes
Tool Type
Development Kit
Cpu Core
AVR 8
Data Bus Width
8 bit
Processor To Be Evaluated
ATtiny20
Interface Type
Touch
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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12.11.5
12.11.6
12.11.7
12.11.8
8235B–AVR–04/11
OCR1AH and OCR1AL – Output Compare Register 1 A
OCR1BH and OCR1BL – Output Compare Register 1 B
ICR1H and ICR1L – Input Capture Register 1
TIMSK – Timer/Counter Interrupt Mask Register
The Output Compare Registers contain a 16-bit value that is continuously compared with the
counter value (TCNT1). A match can be used to generate an Output Compare interrupt, or to
generate a waveform output on the OC1x pin.
The Output Compare Registers are 16-bit in size. To ensure that both the high and low bytes are
written simultaneously when the CPU writes to these registers, the access is performed using an
8-bit temporary high byte register (TEMP). This temporary register is shared by all the other 16-
bit registers. See
The Input Capture is updated with the counter (TCNT1) value each time an event occurs on the
ICP1 pin (or optionally on the Analog Comparator output for Timer/Counter1). The Input Capture
can be used for defining the counter TOP value.
The Input Capture Register is 16-bit in size. To ensure that both the high and low bytes are read
simultaneously when the CPU accesses these registers, the access is performed using an 8-bit
temporary high byte register (TEMP). This temporary register is shared by all the other 16-bit
registers.
• Bit 7 – ICIE1: Timer/Counter1, Input Capture Interrupt Enable
When this bit is written to one, and the I-flag in the Status Register is set (interrupts globally
enabled), the Timer/Countern Input Capture interrupt is enabled. The corresponding Interrupt
Vector (See “Interrupts” on page 66.) is executed when the ICF1 Flag, located in TIFR, is set.
• Bit 5 – OCIE1B: Timer/Counter1, Output Compare B Match Interrupt Enable
When this bit is written to one, and the I-flag in the Status Register is set (interrupts globally
enabled), the Timer/Counter1 Output Compare B Match interrupt is enabled. The corresponding
Bit
0x1F
0x1E
Read/Write
Initial Value
Bit
0x1D
0x1C
Read/Write
Initial Value
Bit
0x1B
0x1A
Read/Write
Initial Value
Bit
0x26
Read/Write
Initial Value
“Accessing 16-bit Registers” on page
ICIE1
R/W
R/W
R/W
R/W
7
0
7
0
“Accessing 16-bit Registers” on page
7
0
7
0
R/W
R/W
R/W
R
6
0
6
0
6
0
6
–
0
OCIE1B
R/W
R/W
R/W
R/W
5
0
5
0
5
0
5
0
OCIE1A
R/W
R/W
R/W
R/W
4
OCR1A[15:8]
0
4
OCR1B[15:8]
0
4
0
OCR1A[7:0]
OCR1B[7:0]
4
0
ICR1[15:8]
ICR1[7:0]
95.
TOIE1
R/W
R/W
R/W
R/W
3
0
3
0
3
0
3
0
95.
OCIE0B
R/W
R/W
R/W
R/W
2
0
2
0
2
0
2
0
OCIE0A
R/W
R/W
R/W
R/W
1
0
1
0
1
0
1
0
ATtiny20
R/W
R/W
R/W
TOIE0
R/W
0
0
0
0
0
0
0
0
OCR1AH
OCR1AL
OCR1BH
OCR1BL
ICR1H
ICR1L
TIMSK
103
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