ATMEGA16HVA-4CKU Atmel, ATMEGA16HVA-4CKU Datasheet - Page 90
![MCU AVR 16K FLASH 4MHZ 36-LGA](/photos/12/32/123221/36ck1-lga_sml.jpg)
ATMEGA16HVA-4CKU
Manufacturer Part Number
ATMEGA16HVA-4CKU
Description
MCU AVR 16K FLASH 4MHZ 36-LGA
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA16HVA-4CKU.pdf
(196 pages)
Specifications of ATMEGA16HVA-4CKU
Core Processor
AVR
Core Size
8-Bit
Speed
4MHz
Connectivity
SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
7
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 9 V
Data Converters
A/D 5x12b
Oscillator Type
External
Operating Temperature
-20°C ~ 85°C
Package / Case
36-LGA
Processor Series
ATMEGA16x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SPI
Maximum Clock Frequency
4 MHz
Number Of Programmable I/os
6
Number Of Timers
2
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRSB200, ATAVRSB201
Minimum Operating Temperature
- 20 C
On-chip Adc
12 bit, 5 Channel
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32ATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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17.10 Register Description
17.10.1
90
ATmega8HVA/16HVA
TCCRnA – Timer/Counter n Control Register A
• Bit 7– TCWn: Timer/Counter Width
When this bit is written to one 16-bit mode is selected. The Timer/Counter width is set to 16-bits
and the Output Compare Registers OCRnA and OCRnB are combined to form one 16-bit Output
Compare Register. Because the 16-bit registers TCNTnH/L and OCRnB/A are accessed by the
AVR CPU via the 8-bit data bus, special procedures must be followed. These procedures are
described in section
• Bit 6– ICENn: Input Capture Mode Enable
The Input Capture Mode is enabled when this bit is written to one.
• Bit 5 – ICNCn: Input Capture Noise Canceler
Setting this bit activates the Input Capture Noise Canceler. When the noise canceler is acti-
vated, the input from the Input Capture Source is filtered. The filter function requires four
successive equal valued samples of the Input Capture Source for changing its output. The Input
Capture is therefore delayed by four System Clock cycles when the noise canceler is enabled.
• Bit 4 – ICESn: Input Capture Edge Select
This bit selects which edge on the Input Capture Source that is used to trigger a capture event.
When the ICESn bit is written to zero, a falling (negative) edge is used as trigger, and when the
ICESn bit is written to one, a rising (positive) edge will trigger the capture. When a capture is trig-
gered according to the ICESn setting, the counter value is copied into the Input Capture
Register. The event will also set the Input Capture Flag (ICFn), and this can be used to cause an
Input Capture Interrupt, if this interrupt is enabled.
• Bit 3 - ICSn: Input Capture Select
When written to a logic one, this bit selects the alternate Input Capture Source as trigger for the
Timer/Counter input capture function. To trigger the Timer/Counter Input Capture interrupt, the
ICIEn bit in the Timer Interrupt Mask Register (TIMSK) must be set. See
and
• Bits 2:0 – Res: Reserved Bits
These bits are reserved bits in the ATmega8HVA/16HVA and will always read as zero.
• Bit 0 – WGMn0: Waveform Generation Mode
This bit controls the counting sequence of the counter, the source for maximum (TOP) counter
value, see
Normal mode (counter) and Clear Timer on Compare Match (CTC) mode (see
Timing Diagrams” on page
Bit
Read/Write
Initial Value
Table 17-4 on page
Figure 17-6 on page
TCWn
R/W
7
0
”Accessing Registers in 16-bit Mode” on page
ICENn
84.
R/W
6
0
85).
85. Modes of operation supported by the Timer/Counter unit are:
ICNCn
R/W
5
0
ICESn
R/W
4
0
ICSn
R/W
0
3
R
2
–
0
86.
R
1
–
0
Table 17-3 on page 84
WGMn0
R/W
”Timer/Counter
0
0
8024A–AVR–04/08
TCCRnA
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