SAM9X35 Atmel Corporation, SAM9X35 Datasheet - Page 944

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SAM9X35

Manufacturer Part Number
SAM9X35
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of SAM9X35

Flash (kbytes)
0 Kbytes
Pin Count
217
Max. Operating Frequency
400 MHz
Cpu
ARM926
Hardware Qtouch Acquisition
No
Max I/o Pins
105
Ext Interrupts
105
Usb Transceiver
3
Usb Speed
Hi-Speed
Usb Interface
Host, Device
Spi
2
Twi (i2c)
3
Uart
7
Can
2
Lin
4
Ssc
1
Ethernet
1
Sd / Emmc
2
Graphic Lcd
Yes
Video Decoder
No
Camera Interface
No
Adc Channels
12
Adc Resolution (bits)
10
Adc Speed (ksps)
440
Resistive Touch Screen
Yes
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
32
Self Program Memory
NO
External Bus Interface
1
Dram Memory
DDR/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
41.9.6
Name:
Address:
Access:
Any modification on one of the fields of the CANBR register must be done while CAN module is disabled.
To compute the different Bit Timings, please refer to the
• PHASE2: Phase 2 segment
This phase is used to compensate the edge phase error.
Warning: PHASE2 value must be different from 0.
• PHASE1: Phase 1 segment
This phase is used to compensate for edge phase error.
• PROPAG: Programming time segment
This part of the bit time is used to compensate for the physical delay times within the network.
• SJW: Re-synchronization jump width
To compensate for phase shifts between clock oscillators of different controllers on bus. The controller must re-synchronize
on any relevant signal edge of the current transmission. The synchronization jump width defines the maximum of clock
cycles a bit period may be shortened or lengthened by re-synchronization.
• BRP: Baudrate Prescaler.
This field allows user to program the period of the CAN system clock to determine the individual bit timing.
The BRP field must be within the range [1, 0x7F], i.e., BRP = 0 is not authorized.
• SMP: Sampling Mode
0 = The incoming bit stream is sampled once at sample point.
1 = The incoming bit stream is sampled three times with a period of a MCK clock period, centered on sample point.
SMP Sampling Mode is automatically disabled if BRP = 0.
944
944
31
23
15
7
SAM9X25
SAM9X25
CAN Baudrate Register
t
t
t
t
t
PHS2
PHS1
PRS
SJW
CSC
=
=
=
=
=
30
22
14
CAN_BR
0xF8000014 (0), 0xF8004014 (1)
Read-write
6
t
t
CSC
CSC
t
t
BRP
CSC
CSC
+
1
PROPAG
SJW
PHASE2
PHASE1
PHASE1
MCK
+
29
21
13
5
1
+
+
+
1
1
1
SJW
28
20
12
4
Section 41.7.4.1 “CAN Bit Timing Configuration” on page
BRP
27
19
11
3
26
18
10
2
PROPAG
PHASE2
25
17
9
1
11054A–ATARM–27-Jul-11
11054A–ATARM–27-Jul-11
SMP
24
16
912.
8
0

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