ATTINY12L-4PU Atmel, ATTINY12L-4PU Datasheet - Page 41

• Manufacturer Part Number: ATTINY12L-4PU
• Description: MCU 8-Bit ATtiny AVR RISC 1KB Flash 3.3V/5V 8-Pin PDIP
• Manufacturer: Atmel

Specifications of ATTINY12L-4PU

• Package: 8PDIP
• Device Core: AVR
• Family Name: ATtiny
• Maximum Speed: 4 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 6
• Interface Type: SPI
• Number Of Timers: 1
• Program Memory Size: 1 KB
• Program Memory Type: Flash
• Operating Temperature: -40 to 85 °C
• Processor Series: ATTINY1x
• Core: AVR8
• Maximum Clock Frequency: 4 MHz
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Package / Case: PDIP-8
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500
• Minimum Operating Temperature: - 40 C
• Lead Free Status / Rohs Status: Details

Register Description
Timer/Counter0 Control
Register – TCCR0
Timer Counter 0 – TCNT0
1006F–AVR–06/07
• Bits 7..3 - Res: Reserved Bits
These bits are reserved bits in the ATtiny11/12 and always read as zero.
• Bits 2,1,0 - CS02, CS01, CS00: Clock Select0, Bit 2,1 and 0
The Clock Select0 bits 2,1 and 0 define the prescaling source of Timer0.
Table 18. Clock 0 Prescale Select
The Stop condition provides a Timer Enable/Disable function. The CK down-divided
modes are scaled directly from the CK oscillator clock. If the external pin modes are
used for Timer/Counter0, transitions on PB2/(T0) will clock the counter even if the pin is
configured as an output. This feature can give the user SW control of the counting.
The Timer/Counter0 is implemented as an up-counter with read and write access. If the
Timer/Counter0 is written and a clock source is present, the Timer/Counter0 continues
counting in the timer clock cycle following the write operation.
Bit
$33
Read/Write
Initial Value
Bit
$32
Read/Write
Initial Value
CS02
0
0
0
0
1
1
1
1
MSB
CS01
R/W
R
7
0
-
7
0
0
0
1
1
0
0
1
1
R/W
R
6
0
-
6
0
CS00
0
1
0
1
0
1
0
1
R/W
R
5
0
-
5
0
Description
Stop, the Timer/Counter0 is stopped.
CK
CK/8
CK/64
CK/256
CK/1024
External Pin T0, falling edge
External Pin T0, rising edge
R/W
4
0
R
4
0
-
R/W
3
0
3
R
0
-
R/W
2
0
CS02
R/W
2
0
R/W
ATtiny11/12
1
0
CS01
R/W
1
0
LSB
R/W
CS00
R/W
0
0
0
0
TCNT0
TCCR0
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