SAM9G10 Atmel Corporation, SAM9G10 Datasheet - Page 133

• Manufacturer Part Number: SAM9G10
• Manufacturer: Atmel Corporation

Specifications of SAM9G10

• Flash (kbytes): 0 Kbytes
• Pin Count: 217
• Max. Operating Frequency: 266 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 96
• Ext Interrupts: 96
• Usb Transceiver: 3
• Usb Speed: Full Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 1
• Uart: 4
• Ssc: 3
• Sd / Emmc: 1
• Graphic Lcd: Yes
• Video Decoder: No
• Camera Interface: No
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 16
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: sdram
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 1.08 to 1.32
• Fpu: No
• Mpu / Mmu: No/Yes
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

16. Real-time Clock (RTC)
16.1
16.2
16.3
Figure 16-1. RTC Block Diagram
11053B–ATARM–22-Sep-11
11053B–ATARM–22-Sep-11
Description
Embedded Characteristics
Block Diagram
Slow Clock: SLCK
Bus Interface
The Real-time Clock (RTC) peripheral is designed for very low power consumption.
It combines a complete time-of-day clock with alarm and a two-hundred-year Gregorian calen-
dar, complemented by a programmable periodic interrupt. The alarm and calendar registers are
accessed by a 32-bit data bus.
The time and calendar values are coded in binary-coded decimal (BCD) format. The time format
can be 24-hour mode or 12-hour mode with an AM/PM indicator.
Updating time and calendar fields and configuring the alarm fields are performed by a parallel
capture on the 32-bit data bus. An entry control is performed to avoid loading registers with
incompatible BCD format data or with an incompatible date according to the current
month/year/century.
• Low Power Consumption
• Full Asynchronous Design
• Two Hundred Year Gregorian Calendar
• Programmable Periodic Interrupt
• Time, Date and Alarm 32-bit Parallel Load
32768 Divider
Bus Interface
Control
Entry
Time
Interrupt
Control
Date
RTC Interrupt
SAM9G35
SAM9G35
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