ATTINY20-EK1 Atmel, ATTINY20-EK1 Datasheet - Page 161
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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18.7.1
18.7.2
8235B–AVR–04/11
TPIIR – Tiny Programming Interface Identification Register
TPIPCR – Tiny Programming Interface Physical Layer Control Register
Table 18-11. Summary of Control and Status Registers (Continued)
• Bits 7:0 – TPIIC: Tiny Programming Interface Identification Code
These bits give the identification code for the Tiny Programming Interface. The code can be
used be the external programmer to identify the TPI. The identification code of the Tiny Pro-
gramming Interface is shown in
Table 18-12. Identification Code for Tiny Programming Interface
• Bits 7:3 – Res: Reserved Bits
These bits are reserved and will always read as zero.
• Bits 2:0 – GT[2:0]: Guard Time
These bits specify the number of additional IDLE bits that are inserted to the idle time when
changing from reception mode to transmission mode. Additional delays are not inserted when
changing from transmission mode to reception.
The total idle time when changing from reception to transmission mode is Guard Time plus two
IDLE bits.
Table 18-13. Guard Time Settings
Bit
CSS: 0x0F
Read/Write
Initial Value
Bit
CSS: 0x02
Read/Write
Initial Value
Addr.
0x02
0x01
0x00
Code
Interface Identification
GT2
0
0
0
0
1
Name
TPIPCR
Reserved
TPISR
Table 18-13
R
R
7
0
7
–
0
Bit 7
shows the available Guard Time settings.
–
–
–
R
R
6
0
6
–
0
GT1
0
0
1
1
0
Programming Interface Identification Code
Bit 6
Table
R
R
5
0
5
–
0
–
–
–
18-12.
R
R
4
0
4
–
0
Bit 5
GT0
–
–
–
0
1
0
1
0
R
R
3
0
3
–
0
Value
0x80
Bit 4
–
–
–
Guard Time (Number of IDLE bits)
+128 (default value)
+64
+32
+16
+8
GT2
R/W
R
2
0
2
0
Bit 3
–
–
–
GT1
R/W
R
1
0
1
0
Bit 2
GT2
–
–
GT0
R/W
R
0
0
0
0
NVMEN
ATtiny20
Bit 1
GT1
TPIPCR
TPIIR
–
Bit 0
GT0
–
–
161
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