SAM7S256 Atmel Corporation, SAM7S256 Datasheet - Page 150

• Manufacturer Part Number: SAM7S256
• 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

Instruction Cycle Timings
6-8
Operation type
normal
dest=pc
shift(Rs)
shift(Rs)
dest=pc
The shifted register operations where the destination is the PC are not available in
Thumb state.
Cycle
1
1
2
3
1
2
1
2
3
4
Note
Copyright © 1994-2001. All rights reserved.
Address
pc+2L
pc+3L
pc+2L
alu
alu+L
alu+2L
pc+2L
pc+3L
pc+3L
pc+8
pc+12
alu
alu+4
alu+8
MAS[1:0]
i
i
i
i
i
i
2
2
2
2
Table 6-4 Data operation instruction cycles
0
0
0
0
0
0
0
0
nRW
0
0
Data
(pc+2L)
(pc+2L)
(alu)
(alu+L)
(pc+2L)
-
(pc+8)
-
(alu)
(alu+4)
nMREQ
0
0
0
0
1
0
1
0
0
0
SEQ
1
0
1
1
0
1
0
0
1
1
ARM DDI 0029G
nOPC
0
0
0
0
0
1
0
1
0
0