SAM7S256 Atmel Corporation, SAM7S256 Datasheet - Page 166

• 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
6-24
CP
register
status
n registers
(n>1)
not ready
Cycle
1
2
•
b
b+1
•
n+b
n+b+1
Address
pc+8
pc+8
pc+8
pc+8
alu
alu+•
alu+•
alu+•
pc+12
Coprocessor data transfer operations are not available in Thumb state.
Table 6-18 coprocessor data transfer instruction cycle operations (continued)
Note
MAS
[1:0]
2
2
2
2
2
2
2
2
Copyright © 1994-2001. All rights reserved.
nRW
0
0
0
0
1
1
1
1
Data
(pc+8)
-
-
-
CPdata
CPdata
CPdata
CPdata
nMREQ
1
1
1
0
0
0
0
0
SEQ
0
0
0
0
1
1
1
0
nOPC
0
1
1
1
1
1
1
1
nCPI
0
0
0
0
1
1
1
1
ARM DDI 0029G
CPA
0
0
0
0
0
0
0
1
CPB
1
1
1
0
0
0
0
1