SAM7SE256 Atmel Corporation, SAM7SE256 Datasheet - Page 193

• Manufacturer Part Number: SAM7SE256
• Manufacturer: Atmel Corporation

Specifications of SAM7SE256

• Flash (kbytes): 256 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 48 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 88
• Ext Interrupts: 88
• 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): 32
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: sdram
• Nand Interface: Yes
• 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: Yes / No
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

7.17
ARM DDI 0029G
Test clock and external clock timing
Figure 7-16 shows the ARM7TDMI processor test clock and external clock timing. The
timing parameter used in Figure 7-16 is listed in Table 7-16.
In Figure 7-16, T
of TCK to ECLK.
ECLK
TCK
Note
Copyright © 1994-2001. All rights reserved.
T
ctdel
ctdel
is the delay, on either edge (whichever is greater), from the edge
Symbol
T
T
ctdel
ctdel
Table 7-16 TCK and ECLK timing parameters
Parameter
TCK to ECLK delay
Figure 7-16 TCK and ECLK timing
AC and DC Parameters
Parameter type
Maximum
7-21