ATxmega128D3 Atmel Corporation, ATxmega128D3 Datasheet - Page 167

• Manufacturer Part Number: ATxmega128D3
• Manufacturer: Atmel Corporation

Specifications of ATxmega128D3

• Flash (kbytes): 128 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 32 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 50
• Ext Interrupts: 50
• Usb Speed: No
• Usb Interface: No
• Spi: 5
• Twi (i2c): 2
• Uart: 3
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 16
• Adc Resolution (bits): 12
• Adc Speed (ksps): 200
• Analog Comparators: 2
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 8
• Eeprom (bytes): 2048
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.6 to 3.6
• Operating Voltage (vcc): 1.6 to 3.6
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 5
• Output Compare Channels: 18
• Input Capture Channels: 18
• Pwm Channels: 18
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

15.3.10
15.3.11
8210B–AVR–04/10
COMPH - Real Time Counter Compare Register H
COMPL - Real Time Counter Compare Register L
The COMPH and COMPL register pair represent the 16-bit value COMP. COMP is constantly
compared with the counter value (CNT). A compare match will set the COMPIF in the INT-
FLAGS register. Reading and writing 16-bit values require special attention, refer to
”Configuration Change Protection” on page 12
Due to synchronization between RTC clock and the system clock domains, there is a latency of
two RTC clock cycles from updating the register until this has an effect. Application SW needs to
check that the SYNCBUSY flag in the
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If the COMP value is higher than the PER value, no RTC Compare Match interrupt requests or
events will ever be generated.
• Bits 7:0 - COMP[15:8]: Real Time Counter Compare Register High byte
These bits hold the 8 MSB of the 16-bit RTC compare value.
• Bits 7:0 - COMP[7:0]: Real Time Counter Compare Register Low byte
These bits hold the 8 LSB of the 16-bit RTC compare value.
Bit
+0x0D
Read/Write
Initial Value
Bit
+0x0C
Read/Write
Initial Value
is cleared before writing to this register.
R/W
R/W
7
0
7
0
R/W
R/W
6
0
6
0
R/W
R/W
5
0
5
0
”STATUS - Real Time Counter Status Register” on page
R/W
R/W
4
0
4
0
COMP[15:8]
COMP[7:0]
for details.
R/W
R/W
3
0
3
0
R/W
R/W
2
0
2
0
R/W
R/W
1
0
1
0
XMEGA D
R/W
R/W
0
0
0
0
COMPH
COMPL
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