SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 119

• Manufacturer Part Number: SAM9G20
• Manufacturer: Atmel Corporation

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

18. Shutdown Controller (SHDWC)
18.1
18.2
Figure 18-1. Shutdown Controller Block Diagram
18.3
Table 18-1.
18.4
18.4.1
6384E–ATARM–05-Feb-10
Name
WKUP0
SHDN
WKUP0
RTT Alarm
Overview
Block Diagram
I/O Lines Description
Product Dependencies
Power Management
I/O Lines Description
SHDW_MR
WKMODE0
CPTWK0
Shutdown Controller
RTTWKEN
The Shutdown Controller controls the power supplies VDDIO and VDDCORE and the wake-up
detection on debounced input lines.
The Shutdown Controller is continuously clocked by Slow Clock. The Power Management Con-
troller has no effect on the behavior of the Shutdown Controller.
Description
Wake-up 0 input
Shutdown output
SHDW_MR
read SHDW_SR
reset
WAKEUP0
reset
read SHDW_SR
RTTWK
set
set
SHDW_SR
SHDW_SR
SHDW_CR
SLCK
SHDW
AT91SAM9G20
Wake-up
Shutdown
Shutdown
Controller
Output
Type
Input
Output
SHDN
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