ATTINY9-MAHR Atmel, ATTINY9-MAHR Datasheet - Page 106

• Manufacturer Part Number: ATTINY9-MAHR
• Description: IC MCU AVR 1K FLASH 8UDFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY9-MAHR

• Package / Case: 8-UDFN Exposed Pad
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 12MHz
• Number Of I /o: 4
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 32 x 8
• Program Memory Size: 1KB (1K x 8)
• Oscillator Type: Internal
• Peripherals: POR, PWM, WDT
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details

14.7
14.7.1
14.7.2
106
Control and Status Space Register Descriptions
ATtiny4/5/9/10
TPIIR – Tiny Programming Interface Identification Register
TPIPCR – Tiny Programming Interface Physical Layer Control Register
The control and status registers of the Tiny Programming Interface are mapped in the Control
and Status Space (CSS) of the interface. These registers are not part of the I/O register map
and are accessible via SLDCS and SSTCS instructions, only. The control and status registers
are directly involved in configuration and status monitoring of the TPI.
A summary of CSS registers is shown in
Table 14-11. Summary of Control and Status Registers
• 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 14-12. Identification Code for Tiny Programming Interface
• Bits 7:3 – Res: Reserved Bits
These bits are reserved and will always read zero.
Bit
CSS: 0x0F
Read/Write
Initial Value
Bit
CSS: 0x02
Read/Write
Initial Value
Addr.
0x0F
0x0E
...
0x03
0x02
0x01
0x00
Code
Interface Identification
Name
TPIIR
Reserved
TPIPCR
Reserved
TPISR
R
R
7
0
7
–
0
Bit 7
R
R
6
0
6
–
0
–
–
–
–
Programming Interface Identification Code
Table
R
R
5
0
5
–
0
Bit 6
–
–
–
–
14-12..
Tiny Programming Interface Identification Code
R
R
4
0
4
–
0
Table
Bit 5
–
–
–
–
14-11.
R
R
3
0
3
–
0
Value
0x80
Bit 4
–
–
–
–
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
Bit 1
GT1
TPIPCR
TPIIR
–
–
8127D–AVR–02/10
Bit 0
GT0
–
–
–