SAM9260 Atmel Corporation, SAM9260 Datasheet - Page 90

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SAM9260

Manufacturer Part Number
SAM9260
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of SAM9260

Flash (kbytes)
0 Kbytes
Pin Count
217
Max. Operating Frequency
210 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)
312
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
8
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
Fpu
No
Mpu / Mmu
No / Yes
Timers
6
Output Compare Channels
6
Input Capture Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
No
WD User Interface
WD Base Address: 0xFFFF8000 (Code Label WD_BASE)
Table 12. WD Memory Map
WD Overflow Mode Register
Name:
Access:
Reset Value: 0
Offset:
• WDEN: Watch Dog Enable (Code Label WD_WDEN)
0 = Watch Dog is disabled and does not generate any signals.
1 = Watch Dog is enabled and generates enabled signals.
• RSTEN: Reset Enable (Code Label WD_RSTEN)
0 = Generation of an internal reset by the Watch Dog is disabled.
1 = When overflow occurs, the Watch Dog generates an internal reset.
• IRQEN: Interrupt Enable (Code Label WD_IRQEN)
0 = Generation of an interrupt by the Watch Dog is disabled.
1 = When overflow occurs, the Watch Dog generates an interrupt.
• EXTEN: External Signal Enable (Code Label WD_EXTEN)
0 = Generation of a pulse on the pin NWDOVF by the Watch Dog is disabled.
1 = When an overflow occurs, a pulse on the pin NWDOVF is generated.
• OKEY: Overflow Access Key (Code Label WD_OKEY)
Used only when writing WD_OMR. OKEY is read as 0.
0x234 = Write access in WD_OMR is allowed.
Other value = Write access in WD_OMR is prohibited.
90
31
23
15
Offset
7
0x0C
0x00
0x04
0x08
AT91X40 Series
WD_OMR
Read/Write
0x00
Register
Overflow Mode Register
Clock Mode Register
Control Register
Status Register
30
22
14
6
OKEY
29
21
13
5
28
20
12
4
OKEY
EXTEN
27
19
11
3
WD_OMR
WD_CMR
WD_CR
WD_SR
Name
IRQEN
26
18
10
2
Read/Write
Read/Write
Read Only
Write Only
Access
RSTEN
25
17
9
1
1354D–ATARM–08/02
Reset State
WDEN
0
0
0
24
16
8
0

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