SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 98
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SAM9G20
Manufacturer Part Number
SAM9G20
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9261.pdf
(248 pages)
2.SAM9261.pdf
(1274 pages)
3.SAM9261.pdf
(43 pages)
4.SAM9G20.pdf
(42 pages)
5.SAM9G20.pdf
(832 pages)
Specifications of SAM9G20
Flash (kbytes)
0 Kbytes
Pin Count
217
Max. Operating Frequency
400 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
7
Ssc
1
Ethernet
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
Yes
Adc Channels
4
Adc Resolution (bits)
10
Adc Speed (ksps)
95
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
32
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)
0.9 to 1.1
Fpu
No
Mpu / Mmu
No/Yes
Timers
6
Output Compare Channels
6
Input Capture Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
No
- SAM9261 PDF datasheet
- SAM9261 PDF datasheet #2
- SAM9261 PDF datasheet #3
- SAM9G20 PDF datasheet #4
- SAM9G20 PDF datasheet #5
- Current page: 98 of 832
- Download datasheet (13Mb)
14.4.2
Name:
Access Type:Read-only
• URSTS: User Reset Status
0 = No high-to-low edge on NRST happened since the last read of RSTC_SR.
1 = At least one high-to-low transition of NRST has been detected since the last read of RSTC_SR.
• RSTTYP: Reset Type
Reports the cause of the last processor reset. Reading this RSTC_SR does not reset this field.
• NRSTL: NRST Pin Level
Registers the NRST Pin Level at Master Clock (MCK).
• SRCMP: Software Reset Command in Progress
0 = No software command is being performed by the reset controller. The reset controller is ready for a software command.
1 = A software reset command is being performed by the reset controller. The reset controller is busy.
98
0
0
0
0
1
31
23
15
–
–
–
7
–
RSTTYP
AT91SAM9G20
Reset Controller Status Register
0
0
1
1
0
RSTC_SR
0
1
0
1
0
30
22
14
–
–
–
6
–
Reset Type
General Reset
Wake Up Reset
Watchdog Reset
Software Reset
User Reset
29
21
13
–
–
–
5
–
28
20
12
–
–
–
4
–
Comments
Both VDDCORE and VDDBU rising
VDDCORE rising
Watchdog fault occurred
Processor reset required by the software
NRST pin detected low
27
19
11
–
–
–
3
–
26
18
10
–
–
2
–
RSTTYP
SRCMP
25
17
–
9
1
–
6384E–ATARM–05-Feb-10
URSTS
NRSTL
24
16
–
8
0
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