ATTINY20-EK1 Atmel, ATTINY20-EK1 Datasheet - Page 49
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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10.2.7
10.3
8235B–AVR–04/11
Alternate Port Functions
Program Example
The following code example shows how to set port B pin 0 high, pin 1 low, and define the port
pins from 2 to 3 as input with a pull-up assigned to port pin 2. The resulting pin values are read
back again, but as previously discussed, a nop instruction is included to be able to read back the
value recently assigned to some of the pins.
Note:
Most port pins have alternate functions in addition to being general digital I/Os. In
below is shown how the port pin control signals from the simplified
be overridden by alternate functions.
Assembly Code Example
...
; Define pull-ups and set outputs high
; Define directions for port pins
ldi
ldi
ldi
out
out
out
; Insert nop for synchronization
nop
; Read port pins
in
...
See
“Code Examples” on page
r16,(1<<PUEB2)
r17,(1<<PB0)
r18,(1<<DDB1)|(1<<DDB0)
PUEB,r16
PORTB,r17
DDRB,r18
r16,PINB
6.
Figure 10-2 on page 45
ATtiny20
Figure 10-6
can
49
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