SAM9263 Atmel Corporation, SAM9263 Datasheet - Page 479
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
- M40800 PDF datasheet
- M40800 PDF datasheet #2
- SAM9260 PDF datasheet #3
- SAM9261 PDF datasheet #4
- SAM9263 PDF datasheet #5
- SAM9263 PDF datasheet #6
- Current page: 479 of 1109
- Download datasheet (17Mb)
33.5.1
Table 33-3.
33.6
33.6.1
33.6.2
33.6.3
33.7
33.7.1
479
Pin Name
TWD
TWCK
Product Dependencies
Functional Description
AT91SAM9263
I/O Lines Description
I/O Lines
Power Management
Interrupt
Transfer Format
I/O Lines Description
Both TWD and TWCK are bidirectional lines, connected to a positive supply voltage via a current
source or pull-up resistor (see
high. The output stages of devices connected to the bus must have an open-drain or open-col-
lector to perform the wired-AND function.
TWD and TWCK pins may be multiplexed with PIO lines. To enable the TWI, the programmer
must perform the following steps:
The TWI interface may be clocked through the Power Management Controller (PMC), thus the
programmer must first configure the PMC to enable the TWI clock.
The TWI interface has an interrupt line connected to the Advanced Interrupt Controller (AIC). In
order to handle interrupts, the AIC must be programmed before configuring the TWI.
The data put on the TWD line must be 8 bits long. Data is transferred MSB first; each byte must
be followed by an acknowledgement. The number of bytes per transfer is unlimited (see
33-4).
Each transfer begins with a START condition and terminates with a STOP condition (see
33-3).
• Program the PIO controller to:
• Enable the peripheral clock.
• A high-to-low transition on the TWD line while TWCK is high defines the START condition.
• A low-to-high transition on the TWD line while TWCK is high defines a STOP condition.
– Dedicate TWD and TWCK as peripheral lines.
– Define TWD and TWCK as open-drain.
Pin Description
Two-wire Serial Data
Two-wire Serial Clock
Figure 33-2 on page
478). When the bus is free, both lines are
Input/Output
Input/Output
6249I–ATARM–3-Oct-11
Type
Figure
Figure
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