SAM7L128 Atmel Corporation, SAM7L128 Datasheet - Page 180

• Manufacturer Part Number: SAM7L128
• Manufacturer: Atmel Corporation

Specifications of SAM7L128

• Flash (kbytes): 128 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 36 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 80
• Ext Interrupts: 80
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 3
• Segment Lcd: 40
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 4
• Adc Resolution (bits): 10
• Adc Speed (ksps): 460
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 6
• Self Program Memory: YES
• 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): 1.8 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

AC and DC Parameters
7.5
7-8
Bidirectional data read cycle
Figure 7-4 shows the ARM7TDMI processor bidirectional data read cycle timing. The
timing parameters used in Figure 7-4 are listed in Table 7-4.
In Figure 7-4, DBE is HIGH and nENIN is LOW during the cycle shown.
nENOUT
D[31:0]
BL[3:0]
MCLK
Note
Copyright © 1994-2001. All rights reserved.
T
T
nen
bylh
Symbol
T
T
T
T
T
bylh
byls
dih
dis
nen
Table 7-4 Bidirectional data read cycle timing parameters
T
byls
Parameter
BL[3:0] hold time from MCLKf
BL[3:0] set up to from MCLKr
DIN[31:0] hold time from MCLKf
DIN[31:0] setup time to MCLKf
MCLKf to nENOUT valid
Figure 7-4 Bidirectional data read cycle timing
T
dis
T
dih
Minimum
Minimum
Minimum
Minimum
Maximum
Parameter type
ARM DDI 0029G