SAM9G46 Atmel Corporation, SAM9G46 Datasheet - Page 160
SAM9G46
Manufacturer Part Number
SAM9G46
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9261.pdf
(248 pages)
2.SAM9261.pdf
(1274 pages)
3.SAM9261.pdf
(43 pages)
4.SAM9G46.pdf
(58 pages)
Specifications of SAM9G46
Flash (kbytes)
0 Kbytes
Pin Count
324
Max. Operating Frequency
400 MHz
Cpu
ARM926
Hardware Qtouch Acquisition
No
Max I/o Pins
160
Ext Interrupts
160
Usb Transceiver
3
Usb Speed
Hi-Speed
Usb Interface
Host, Device
Spi
2
Twi (i2c)
2
Uart
5
Lin
4
Ssc
2
Ethernet
1
Sd / Emmc
2
Graphic Lcd
Yes
Video Decoder
No
Camera Interface
Yes
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
440
Resistive Touch Screen
Yes
Temp. Sensor
No
Crypto Engine
AES/DES
Sram (kbytes)
64
Self Program Memory
NO
External Bus Interface
2
Dram Memory
DDR2/LPDDR, SDRAM/LPSDR
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
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
No
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Figure 18-2. Shutdown Controller Block Diagram
18.4
Table 18-1.
18.5
18.5.1
18.6
160
160
Name
WKUP0
SHDN
WKUP0
RTC Alarm
I/O Lines Description
Product Dependencies
Functional Description
SAM9G35
SAM9G35
Power Management
I/O Lines Description
Shutdown Controller
RTTWKEN
WKMODE0
SHDW_MR
CPTWK0
The Shutdown Controller is continuously clocked by Slow Clock. The Power Management Con-
troller has no effect on the behavior of the Shutdown Controller.
The Shutdown Controller manages the main power supply. To do so, it is supplied with VDDBU
and manages wake-up input pins and one output pin, SHDN.
A typical application connects the pin
viding the main power supplies of the system, and especially VDDCORE and/or VDDIO. The
wake-up inputs (WKUP0) connect to any push-buttons or signal that wake up the system.
The software is able to control the pin
(SHDW_CR) with the bit SHDW at 1. The shutdown is taken into account only 2 slow clock
cycles after the write of SHDW_CR. This register is password-protected and so the value written
Description
Wake-up 0 input
Shutdown output
SHDW_MR
reset
reset
set
read SHDW_SR
read SHDW_SR
WAKEUP0
RTCWK
set
SHDW_SR
SHDW_SR
SHDN
SHDN
to the shutdown input of the DC/DC Converter pro-
by writing the Shutdown Control Register
SHDW_CR
SLCK
SHDW
Wake-up
Shutdown
Shutdown
Controller
Output
11053B–ATARM–22-Sep-11
11053B–ATARM–22-Sep-11
Type
Input
Output
SHDN
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