SAM9263 Atmel Corporation, SAM9263 Datasheet - Page 90
SAM9263
Manufacturer Part Number
SAM9263
Description
Manufacturer
Atmel Corporation
Datasheets
1.M40800.pdf
(284 pages)
2.M40800.pdf
(153 pages)
3.SAM9260.pdf
(290 pages)
4.SAM9261.pdf
(248 pages)
5.SAM9263.pdf
(1109 pages)
6.SAM9263.pdf
(51 pages)
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 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