SAM7S256 Atmel Corporation, SAM7S256 Datasheet - Page 30
SAM7S256
Manufacturer Part Number
SAM7S256
Description
Manufacturer
Atmel Corporation
Specifications of SAM7S256
Flash (kbytes)
256 Kbytes
Pin Count
64
Max. Operating Frequency
55 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
32
Ext Interrupts
32
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
1
Twi (i2c)
1
Uart
3
Ssc
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
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
64
Self Program Memory
NO
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
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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Introduction
1-8
nENOUT
Write data register
DBE
(31 x 32-bit registers)
Copyright © 1994-2001. All rights reserved.
ALE
(6 status registers)
32-bit ALU
Address register
Register bank
nENIN
A[31:0]
incrementer
Barrel shifter
Multiplier
Address
32 x 8
ABE
Thumb instruction controller
D[31:0]
Instruction pipeline
Read data register
Scan control
decoder and
logic control
Instruction
Figure 1-3 Main processor
ARM DDI 0029G
DBGRQI
BREAKPTI
DBGACK
ECLK
nEXEC
ISYNC
BL[3:0]
APE
MCLK
nWAIT
nRW
MAS[1:0]
nIRQ
nFIQ
nRESET
ABORT
nTRANS
nMREQ
nOPC
SEQ
LOCK
nCPI
CPA
CPB
nM[4:0]
TBE
TBIT
HIGHZ
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