ATTINY48-MMHR Atmel, ATTINY48-MMHR Datasheet - Page 85

• Manufacturer Part Number: ATTINY48-MMHR
• Description: MCU AVR 4KB FLASH 12MHZ 28QFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY48-MMHR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 12MHz
• Connectivity: I²C, SPI
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 24
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

11.8
11.8.1
8008G–AVR–04/11
8-bit Timer/Counter Register Description
TCCR0A – Timer/Counter Control Register A
Figure 11-7. Timer/Counter Timing Diagram, Setting of OCF0x, with Prescaler (f
Figure 11-8
is TOP.
Figure 11-8. Timer/Counter Timing Diagram, Clear Timer on Compare Match mode, with Pres-
• Bits 7:4 – Res: Reserved Bits
These bits are reserved and will always read zero.
• Bit 3 – CTC0: Clear Timer on Compare Match Mode
This bit control the counting sequence of the counter, the source for maximum (TOP) counter
value, see
mode (counter), Clear Timer on Compare Match (CTC) mode (see
page
Bit
0x25 (0x45)
Read/Write
Initial Value
TCNTn
TCNTn
(clk
(clk
OCRnx
OCRnx
83).
OCFnx
(CTC)
OCFnx
clk
clk
clk
clk
I/O
I/O
I/O
Tn
I/O
Tn
/8)
/8)
Table
shows the setting of OCF0A and the clearing of TCNT0 in CTC mode where OCR0A
caler (f
7
R
0
–
11-2. Modes of operation supported by the Timer/Counter unit are: Normal
clk_I/O
OCRnx - 1
TOP - 1
/8)
R
6
0
–
R
5
–
0
OCRnx
TOP
R
4
–
0
OCRnx Value
TOP
CTC0
R/W
3
0
OCRnx + 1
BOTTOM
CS02
R/W
2
0
“Modes of Operation” on
CS01
R/W
1
0
ATtiny48/88
BOTTOM + 1
CS00
OCRnx + 2
R/W
0
0
clk_I/O
/8)
TCCR0A
85