SAM9263 Atmel Corporation, SAM9263 Datasheet - Page 54
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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: 54 of 284
- Download datasheet (2Mb)
Programmer’s Model
2.6
2.6.1
2-8
Registers
The ARM-state register set
The ARM7TDMI processor has a total of 37 registers:
•
•
These registers are not all accessible at the same time. The processor state and operating
mode determine which registers are available to the programmer.
In ARM state, 16 general registers and one or two status registers are accessible at any
one time. In privileged modes, mode-specific banked registers become available. Figure
2-3 on page 2-10 shows which registers are available in each mode.
The ARM-state register set contains 16 directly-accessible registers, r0 to r15. A further
register, the CPSR, contains condition code flags and the current mode bits. Registers
r0 to r13 are general-purpose registers used to hold either data or address values.
Registers r14 and r15 have the following special functions:
Link register
Program counter
By convention, r13 is used as the Stack Pointer (SP).
In privileged modes, another register, the Saved Program Status Register (SPSR), is
accessible. This contains the condition code flags and the mode bits saved as a result of
the exception which caused entry to the current mode.
Banked registers are discrete physical registers in the core that are mapped to the
available registers depending on the current processor operating mode. Banked register
contents are preserved across operating mode changes.
31 general-purpose 32-bit registers
6 status registers.
Copyright © 1994-2001. All rights reserved.
Register 14 is used as the subroutine Link Register (LR).
Register r14 receives a copy of r15 when a Branch with Link (BL)
instruction is executed.
At all other times you can treat r14 as a general-purpose register.
The corresponding banked registers r14_svc, r14_irq, r14_fiq,
r14_abt and r14_und are similarly used to hold the return values
of r15 when interrupts and exceptions arise, or when BL
instructions are executed within interrupt or exception routines.
Register 15 holds the PC.
In ARM state, bits [1:0] of r15 are undefined and must be ignored.
Bits [31:2] contain the PC.
In Thumb state, bit [0] is undefined and must be ignored. Bits
[31:1] contain the PC.
ARM DDI 0029G
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