SAM7XC512 Atmel Corporation, SAM7XC512 Datasheet - Page 56
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SAM7XC512
Manufacturer Part Number
SAM7XC512
Description
Manufacturer
Atmel Corporation
Specifications of SAM7XC512
Flash (kbytes)
512 Kbytes
Pin Count
100
Max. Operating Frequency
55 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
62
Ext Interrupts
62
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
2
Twi (i2c)
1
Uart
3
Can
1
Ssc
1
Ethernet
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
384
Resistive Touch Screen
No
Dac Resolution (bits)
No
Temp. Sensor
No
Crypto Engine
AES/DES
Sram (kbytes)
128
Self Program Memory
NO
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.3
Operating Voltage (vcc)
3.0 to 3.6
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
No
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Programmer’s Model
2.6.2
2-10
System and User
r0
r1
r2
r3
r4
r5
r6
r7
SP
LR
PC
The Thumb-state register set
= banked register
CPSR
The Thumb-state register set is a subset of the ARM-state set. The programmer has
access to:
•
•
•
•
•
There are banked SPs, LRs, and SPSRs for each privileged mode. This register set is
shown in Figure 2-4.
SPSR_fiq
r0
r1
r2
r3
r4
r5
r6
r7
SP_fiq
LR_fiq
PC
Thumb-state general registers and program counter
CPSR
FIQ
8 general registers, r0–r7
the PC
the SP
the LR
the CPSR.
Thumb-state program status registers
Copyright © 1994-2001. All rights reserved.
Supervisor
SPSR_svc
r0
r1
r2
r3
r4
r5
r6
r7
SP_svc
LR_svc
PC
CPSR
Figure 2-4 Register organization in Thumb state
SPSR_abt
r0
r1
r2
r3
r4
r5
r6
r7
SP_abt
LR_abt
PC
CPSR
Abort
SPSR_irq
r0
r1
r2
r3
r4
r5
r6
r7
SP_irq
LR_irq
PC
CPSR
IRQ
ARM DDI 0029G
Undefined
SPSR_und
r0
r1
r2
r3
r4
r5
r6
r7
SP_und
LR_und
PC
CPSR
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