SAM9263 Atmel Corporation, SAM9263 Datasheet - Page 91

• Manufacturer Part Number: SAM9263
• Manufacturer: Atmel Corporation

Specifications of SAM9263

• Flash (kbytes): 0 Kbytes
• Pin Count: 324
• Max. Operating Frequency: 240 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 160
• Ext Interrupts: 160
• Usb Transceiver: 3
• Usb Speed: Full Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 1
• Uart: 4
• Can: 1
• Ssc: 2
• Ethernet: 1
• Sd / Emmc: 2
• Graphic Lcd: Yes
• Video Decoder: No
• Camera Interface: Yes
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 96
• Self Program Memory: NO
• External Bus Interface: 2
• Dram Memory: sdram
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Fpu: No
• Mpu / Mmu: No / Yes
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

WD Clock Mode Register
Name:
Access:
Reset Value: 0
Offset:
• WDCLKS: Clock Selection
• HPCV: High Preload Counter Value (Code Label WD_HPCV)
Counter is preloaded when watchdog counter is restarted with bits 0 to 11 set (FFF) and bits 12 to 15 equaling HPCV.
• CKEY: Clock Access Key (Code Label WD_CKEY)
Used only when writing WD_CMR. CKEY is read as 0.
0x06E: Write access in WD_CMR is allowed.
Other value: Write access in WD_CMR is prohibited.
1354D–ATARM–08/02
0
0
1
1
CKEY
WDCLKS
31
23
15
–
–
7
WD_CMR
Read/Write
0x04
0
1
0
1
30
22
14
–
–
6
–
Clock Selected
MCK/8
MCK/32
MCK/128
MCK/1024
29
21
13
–
–
5
28
20
12
–
–
4
CKEY
HPCV
27
19
11
–
–
3
26
18
10
–
–
2
WD_WDCLKS_MCK1024
WD_WDCLKS_MCK128
WD_WDCLKS_MCK32
WD_WDCLKS_MCK8
Code Label
WD_WDCLKS
AT91X40 Series
25
17
–
–
9
1
WDCLKS
24
16
–
–
8
0
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