SAM9X35 Atmel Corporation, SAM9X35 Datasheet - Page 756
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SAM9X35
Manufacturer Part Number
SAM9X35
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9261.pdf
(248 pages)
2.SAM9X25.pdf
(45 pages)
3.SAM9X25.pdf
(1145 pages)
4.SAM9X25.pdf
(45 pages)
5.SAM9X25.pdf
(1325 pages)
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
- SAM9261 PDF datasheet
- SAM9X25 PDF datasheet #2
- SAM9X25 PDF datasheet #3
- SAM9X25 PDF datasheet #4
- SAM9X25 PDF datasheet #5
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Figure 38-9. Master Read with One Data Byte
Figure 38-10. Master Read with Multiple Data Bytes
38.8.6
38.8.6.1
756
756
TXCOMP
RXRDY
TWD
SAM9X35
SAM9X35
Internal Address
S
7-bit Slave Addressing
Write START Bit
DADR
RXRDY bit is set in the status register, a character has been received in the receive-holding reg-
ister (TWI_RHR). The RXRDY bit is reset when reading the TWI_RHR.
When a single data byte read is performed, with or without internal address (IADR), the START
and STOP bits must be set at the same time. See
performed, with or without internal address (IADR), the STOP bit must be set after the next-to-
last data received. See
The TWI interface can perform various transfer formats: Transfers with 7-bit slave address
devices and 10-bit slave address devices.
When Addressing 7-bit slave devices, the internal address bytes are used to perform random
address (read or write) accesses to reach one or more data bytes, within a memory page loca-
tion in a serial memory, for example. When performing read operations with an internal address,
the TWI performs a write operation to set the internal address into the slave device, and then
switch to Master Receiver mode. Note that the second start condition (after sending the IADR) is
sometimes called “repeated start” (Sr) in I2C fully-compatible devices. See
Figure 38-11
The three internal address bytes are configurable through the Master Mode register
(TWI_MMR).
TXCOMP
RXRDY
R
TWD
A
and
S
DATA n
Write START &
Figure 38-13
STOP Bit
DADR
Figure
Read RHR
A
DATA n
38-10. For Internal Address usage see
for Master Write operation with internal address.
DATA (n+1)
R
A
A
DATA (n+1)
Read RHR
DATA
DATA (n+m)-1
Figure
Read RHR
N
38-9. When a multiple data byte read is
DATA (n+m)-1
P
A
Read RHR
after next-to-last data read
DATA (n+m)
Write STOP Bit
Section
11055B–ATARM–22-Sep-11
11055B–ATARM–22-Sep-11
Figure
38.8.6.
N
38-12. See
DATA (n+m)
Read RHR
P
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