SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 234
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
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- Download datasheet (30Mb)
23.6
234
234
I/O Lines Programming Example
SAM9G35
SAM9G35
The programing example as shown in
configuration.
Table 23-1.
• 4-bit output port on I/O lines 0 to 3, (should be written in a single write operation), open-drain,
• Four output signals on I/O lines 4 to 7 (to drive LEDs for example), driven high and low, no
• Four input signals on I/O lines 8 to 11 (to read push-button states for example), with pull-up
• Four input signals on I/O line 12 to 15 to read an external device status (polled, thus no input
• I/O lines 16 to 19 assigned to peripheral A functions with pull-up resistor
• I/O lines 20 to 23 assigned to peripheral B functions with pull-down resistor
• I/O line 24 to 27 assigned to peripheral C with Input Change Interrupt, no pull-up resistor and
• I/O line 28 to 31 assigned to peripheral D, no pull-up resistor and no pull-down resistor
with pull-up resistor
pull-up resistor, no pull-down resistor
resistors, glitch filters and input change interrupts
change interrupt), no pull-up resistor, no glitch filter
no pull-down resistor
PIO_ABCDSR1
PIO_ABCDSR2
PIO_PPDDR
PIO_PPDER
PIO_OWDR
PIO_MDDR
PIO_OWER
PIO_SODR
PIO_CODR
PIO_MDER
PIO_PUDR
PIO_PUER
PIO_IFDR
PIO_OER
PIO_ODR
PIO_IFER
PIO_PER
PIO_PDR
Register
PIO_IER
PIO_IDR
Programming Example
Table 23-1
Value to be Written
below is used to obtain the following
0x0FFF_ FFF0
0xFFFF_F0FF
0x0FFF_FFFF
0xFFFF_FFF0
0xFF0F_FFFF
0xFFFF_FF00
0xF0FF_F0FF
0x0000_FFFF
0xFFFF_0000
0x0000_00FF
0x0F00_0F00
0xFFF0_00F0
0x000F_FF0F
0xF0F0_0000
0xFF00_0000
0x0000_0F00
0x0000_0000
0x0000_000F
0x00F0_0000
0x0000_000F
11053B–ATARM–22-Sep-11
11053B–ATARM–22-Sep-11
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